Words Ending With UM

Here's the list of all the 1158 Words Ending With UM in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Words (with Definitions and Examples)
forum
1. a public meeting or assembly for open discussion
2. a public facility to meet for open discussion
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album
1. one or more recordings issued together; originally released on 12-inch phonograph records (usually with attractive record covers) and later on cassette audiotape and compact disc
2. a book of blank pages with pockets or envelopes; for organizing photographs or stamp collections etc
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maximum
1. the largest possible quantity
2. the greatest possible degree
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medium
1. a means or instrumentality for storing or communicating information
2. the surrounding environment
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minimum
1. the smallest possible quantity
2. the point on a curve where the tangent changes from negative on the left to positive on the right
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museum
1. a depository for collecting and displaying objects having scientific or historical or artistic value
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premium
1. payment for insurance
2. the amount that something in scarce supply is valued above its nominal value
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curriculum
1. an integrated course of academic studies
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sum
1. be a summary of
2. determine the sum of
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platinum
1. a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits
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spectrum
1. an ordered array of the components of an emission or wave
2. a broad range of related objects or values or qualities or ideas or activities
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vacuum
1. the absence of matter
2. an empty area or space
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aluminum
1. a silvery ductile metallic element found primarily in bauxite
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drum
1. a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end
2. the sound of a drum
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quantum
1. a discrete amount of something that is analogous to the quantities in quantum theory
2. (physics) the smallest discrete quantity of some physical property that a system can possess (according to quantum theory)
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stadium
1. a large structure for open-air sports or entertainments
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symposium
1. a meeting or conference for the public discussion of some topic especially one in which the participants form an audience and make presentations
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calcium
1. a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
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petroleum
1. a dark oil consisting mainly of hydrocarbons
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millennium
1. a span of 1000 years
2. (New Testament) in the Book of Revelation it is foretold that those faithful to Jesus will reign with Jesus over the earth for a thousand years; the meaning of these words have been much debated; some denominations (e.g. Jehovah's Witnesses) expect it to be a thousand years of justice and peace and happiness
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sodium
1. a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
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consortium
1. an association of companies for some definite purpose
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titanium
1. a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
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equilibrium
1. a stable situation in which forces cancel one another
2. a chemical reaction and its reverse proceed at equal rates
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momentum
1. an impelling force or strength
2. the product of a body's mass and its velocity
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serum
1. an amber, watery fluid, rich in proteins, that separates out when blood coagulates
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aquarium
1. a tank or pool or bowl filled with water for keeping live fish and underwater animals
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optimum
1. most favorable conditions or greatest degree or amount possible under given circumstances
2. most desirable possible under a restriction expressed or implied
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aluminium
1. a silvery ductile metallic element found primarily in bauxite
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asylum
1. a shelter from danger or hardship
2. a hospital for mentally incompetent or unbalanced person
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memorandum
1. a written proposal or reminder
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lithium
1. a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
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gum
1. cover, fill, fix or smear with or as if with gum
2. grind with the gums; chew without teeth and with great difficulty
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auditorium
1. the area of a theater or concert hall where the audience sits
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potassium
1. a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
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mum
1. of China
2. informal terms for a mother
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uranium
1. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
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magnesium
1. a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
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hum
1. the state of being or appearing to be actively engaged in an activity
2. a humming noise
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checksum
1. a digit representing the sum of the digits in an instance of digital data; used to check whether errors have occurred in transmission or storage
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continuum
1. a continuous nonspatial whole or extent or succession in which no part or portion is distinct or distinguishable from adjacent parts
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plum
1. any of several trees producing edible oval fruit having a smooth skin and a single hard stone
2. any of numerous varieties of small to medium-sized round or oval fruit having a smooth skin and a single pit
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referendum
1. a legislative act is referred for final approval to a popular vote by the electorate
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trivium
1. (Middle Ages) an introductory curriculum at a medieval university involving grammar and logic and rhetoric; considered to be a triple way to eloquence
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magnum
1. a large wine bottle for liquor or wine
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condominium
1. one of the dwelling units in a condominium
2. housing consisting of a complex of dwelling units (as an apartment house) in which each unit is individually owned
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rum
1. liquor distilled from fermented molasses
2. a card game based on collecting sets and sequences; the winner is the first to meld all their cards
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datum
1. an item of factual information derived from measurement or research
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quorum
1. a gathering of the minimal number of members of an organization to conduct business
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helium
1. a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
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emporium
1. a large retail store organized into departments offering a variety of merchandise; commonly part of a retail chain
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chromium
1. a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
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addendum
1. textual matter that is added onto a publication; usually at the end
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bum
1. ask for and get free; be a parasite
2. be lazy or idle
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compendium
1. a publication containing a variety of works
2. a concise but comprehensive summary of a larger work
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coliseum
1. an oval large stadium with tiers of seats; an arena in which contests and spectacles are held
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colloquium
1. an academic meeting or seminar usually led by a different lecturer and on a different topic at each meeting
2. an address to an academic meeting or seminar
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ammonium
1. the ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion
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atrium
1. any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)
2. the central area in a building; open to the sky
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opium
1. an addictive narcotic extracted from seed capsules of the opium poppy
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selenium
1. a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
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cadmium
1. a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores
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gymnasium
1. athletic facility equipped for sports or physical training
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palladium
1. a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry
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podium
1. a platform raised above the surrounding level to give prominence to the person on it
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pendulum
1. an apparatus consisting of an object mounted so that it swings freely under the influence of gravity
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alum
1. a person who has received a degree from a school (high school or college or university)
2. a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
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plutonium
1. a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
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moratorium
1. a legally authorized postponement before some obligation must be discharged
2. suspension of an ongoing activity
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solarium
1. a room enclosed largely with glass and affording exposure to the sun
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scum
1. remove the scum from
2. worthless people
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postpartum
1. occurring immediately after birth
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gypsum
1. a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
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rhodium
1. a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum
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arboretum
1. a facility where trees and shrubs are cultivated for exhibition
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centrum
1. the main body of a vertebra
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iridium
1. a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
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sorghum
1. economically important Old World tropical cereal grass
2. made from juice of sweet sorghum
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epithelium
1. membranous tissue covering internal organs and other internal surfaces of the body
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stratum
1. one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)
2. people having the same social, economic, or educational status
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planetarium
1. a building housing an instrument for projecting the positions of the planets onto a domed ceiling
2. an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome
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plenum
1. a meeting of a legislative body at which all members are present
2. an enclosed space in which the air pressure is higher than outside
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mycobacterium
1. rod-shaped bacteria some saprophytic or causing diseases
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barium
1. a soft silvery metallic element of the alkali earth group; found in barite
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bacterium
1. (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
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slum
1. spend time at a lower socio-economic level than one's own, motivated by curiosity or desire for adventure; usage considered condescending and insensitive
2. a district of a city marked by poverty and inferior living conditions
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vellum
1. a heavy creamy-colored paper resembling parchment
2. fine parchment prepared from the skin of a young animal e.g. a calf or lamb
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molybdenum
1. a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel
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chum
1. a close friend who accompanies his buddies in their activities
2. bait consisting of chopped fish and fish oils that are dumped overboard to attract fish
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geranium
1. any of numerous plants of the family Geraniaceae
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tritium
1. a radioactive isotope of hydrogen; atoms of tritium have three times the mass of ordinary hydrogen atoms
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delirium
1. state of violent mental agitation
2. a usually brief state of excitement and mental confusion often accompanied by hallucinations
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tum
1. an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion
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possum
1. nocturnal arboreal marsupial having a naked prehensile tail found from southern North America to northern South America
2. small furry Australian arboreal marsupials having long usually prehensile tails
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herbarium
1. a collection of dried plants that are mounted and systematically classified for study
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radium
1. an intensely radioactive metallic element that occurs in minute amounts in uranium ores
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phylum
1. (linguistics) a large group of languages that are historically related
2. (biology) the major taxonomic group of animals and plants; contains classes
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reticulum
1. any fine network (especially one in the body composed of cells or blood vessels)
2. the second compartment of the stomach of a ruminant
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plasmodium
1. multinucleate sheet of cytoplasm characteristic of some stages of such organisms as slime molds
2. parasitic protozoan of the genus Plasmodium that causes malaria in humans
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vanadium
1. a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite
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conundrum
1. a difficult problem
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beryllium
1. a light strong brittle grey toxic bivalent metallic element
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fulcrum
1. the pivot about which a lever turns
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cranium
1. the part of the skull that encloses the brain
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endothelium
1. an epithelium of mesoblastic origin; a thin layer of flattened cells that lines the inside of some body cavities
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clostridium
1. spindle-shaped bacterial cell especially one swollen at the center by an endospore
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cerebellum
1. a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans
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scrum
1. (rugby) the method of beginning play in which the forwards of each team crouch side by side with locked arms; play starts when the ball is thrown in between them and the two sides compete for possession
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trillium
1. any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petaled flower
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septum
1. (anatomy) a dividing partition between two tissues or cavities
2. a partition or wall especially in an ovary
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zirconium
1. a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
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myocardium
1. the middle muscular layer of the heart wall
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colostrum
1. milky fluid secreted for the first day or two after parturition
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strontium
1. a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
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mausoleum
1. a large burial chamber, usually above ground
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athenaeum
1. a literary or scientific association for the promotion of learning
2. a place where reading materials are available
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ultimatum
1. a final peremptory demand
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gallium
1. a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace amounts in bauxite and zinc ores
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erratum
1. a mistake in printed matter resulting from mechanical failures of some kind
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imperium
1. the domain ruled by an emperor or empress; the region over which imperial dominion is exercised
2. supreme authority; absolute dominion
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linoleum
1. a floor covering
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deuterium
1. an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)
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chrysanthemum
1. the flower of a chrysanthemum plant
2. any of numerous perennial Old World herbs having showy brightly colored flower heads of the genera Chrysanthemum, Argyranthemum, Dendranthema, Tanacetum; widely cultivated
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sanctum
1. a place of inviolable privacy
2. a sacred place of pilgrimage
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sputum
1. expectorated matter; saliva mixed with discharges from the respiratory passages; in ancient and medieval physiology it was believed to cause sluggishness
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botulinum
1. anaerobic bacterium producing botulin the toxin that causes botulism
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speculum
1. a mirror (especially one made of polished metal) for use in an optical instrument
2. a medical instrument for dilating a bodily passage or cavity in order to examine the interior
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ovum
1. the female reproductive cell; the female gamete
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tantalum
1. a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
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germanium
1. a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite
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cesium
1. a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
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decorum
1. propriety in manners and conduct
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tantrum
1. a display of bad temper
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neodymium
1. a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
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scrotum
1. the external pouch that contains the testes
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locum
1. someone (physician or clergyman) who substitutes temporarily for another member of the same profession
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indium
1. a rare soft silvery metallic element; occurs in small quantities in sphalerite
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ngultrum
1. the basic unit of money in Bhutan
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pandemonium
1. a state of extreme confusion and disorder
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crematorium
1. a mortuary where corpses are cremated
2. a furnace where a corpse can be burned and reduced to ashes
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euphonium
1. a bass horn (brass wind instrument) that is the tenor of the tuba family
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dictum
1. an authoritative declaration
2. an opinion voiced by a judge on a point of law not directly bearing on the case in question and therefore not binding
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thorium
1. a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
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capsicum
1. any of various tropical plants of the genus Capsicum bearing peppers
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psyllium
1. plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative
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lyceum
1. a school for students intermediate between elementary school and college; usually grades 9 to 12
2. a public hall for lectures and concerts
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technetium
1. a crystalline metallic element not found in nature; occurs as one of the fission products of uranium
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duodenum
1. the part of the small intestine between the stomach and the jejunum
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striatum
1. a striped mass of white and grey matter located in front of the thalamus in each cerebral hemisphere; consists of the caudate nucleus and the lenticular nucleus
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thallium
1. a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores
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strum
1. sound the strings of (a stringed instrument)
2. sound of strumming
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rheum
1. a watery discharge from the mucous membranes (especially from the eyes or nose)
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endometrium
1. (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition
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disequilibrium
1. loss of equilibrium attributable to an unstable situation in which some forces outweigh others
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antiserum
1. blood serum containing antibodies against specific antigens; provides immunity to a disease
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antebellum
1. belonging to a period before a war especially the American Civil War
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dendrobium
1. a plant of the genus Dendrobium having stems like cane and usually showy racemose flowers
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opossum
1. small furry Australian arboreal marsupials having long usually prehensile tails
2. nocturnal arboreal marsupial having a naked prehensile tail found from southern North America to northern South America
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durum
1. wheat with hard dark-colored kernels high in gluten and used for bread and pasta; grown especially in southern Russia, North Africa, and northern central North America
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sternum
1. the flat bone that articulates with the clavicles and the first seven pairs of ribs
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wampum
1. informal terms for money
2. small cylindrical beads made from polished shells and fashioned into strings or belts; used by certain Native American peoples as jewelry or currency
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inoculum
1. a substance (a virus or toxin or immune serum) that is introduced into the body to produce or increase immunity to a particular disease
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niobium
1. a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
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arcanum
1. information known only to a special group
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ileum
1. the part of the small intestine between the jejunum and the cecum
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ruthenium
1. a rare polyvalent metallic element of the platinum group; it is found associated with platinum
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delphinium
1. any plant of the genus Delphinium having palmately divided leaves and showy spikes of variously colored spurred flowers; some contain extremely poisonous substances
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sphagnum
1. any of various pale or ashy mosses of the genus Sphagnum whose decomposed remains form peat
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criterium
1. a bicycle race held on a short course (usually less than 5 km or 3 miles)
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honorarium
1. a fee paid for a nominally free service
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corynebacterium
1. any species of the genus Corynebacterium
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modicum
1. a small or moderate or token amount
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glum
1. moody and melancholic
2. showing a brooding ill humor
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hoodlum
1. an aggressive and violent young criminal
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gadolinium
1. a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group
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sanitarium
1. a hospital for recuperation or for the treatment of chronic diseases
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tedium
1. the feeling of being bored by something tedious
2. dullness owing to length or slowness
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harmonium
1. a free-reeded instrument with a piano keyboard in which air is forced through the reeds by bellows
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corrigendum
1. a printer's error; to be corrected
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lanthanum
1. a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
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terrarium
1. a vivarium in which selected living plants are kept and observed
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atheneum
1. a literary or scientific association for the promotion of learning
2. a place where reading materials are available
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begum
1. a Muslim woman of high rank in India or Pakistan
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yttrium
1. a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys
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eardrum
1. the membrane in the ear that vibrates to sound
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sedum
1. any of various plants of the genus Sedum
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substratum
1. a surface on which an organism grows or is attached
2. any stratum or layer lying underneath another
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cerium
1. a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
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alluvium
1. clay or silt or gravel carried by rushing streams and deposited where the stream slows down
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rubidium
1. a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
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presidium
1. a permanent executive committee in socialist countries that has all the powers of some larger legislative body and that acts for it when it is not in session
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jejunum
1. the part of the small intestine between the duodenum and the ileum
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osmium
1. a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
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nostrum
1. hypothetical remedy for all ills or diseases; once sought by the alchemists
2. patent medicine whose efficacy is questionable
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peritoneum
1. a transparent membrane that lines the abdominal cavity in mammals and covers most of the viscera
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arum
1. starch resembling sago that is obtained from cuckoopint root
2. any plant of the family Araceae; have small flowers massed on a spadix surrounded by a large spathe
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erbium
1. a trivalent metallic element of the rare earth group; occurs with yttrium
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sanatorium
1. a hospital for recuperation or for the treatment of chronic diseases
2. pejorative terms for an insane asylum
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subphylum
1. (biology) a taxonomic group ranking between a phylum and a class
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scriptorium
1. a room in a monastery that is set aside for writing or copying manuscripts
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