9-Letter Nouns Ending With IUM

1. a meeting or conference for the public discussion of some topic especially one in which the participants form an audience and make presentations

1. a silvery ductile metallic element found primarily in bauxite

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

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)

1. athletic facility equipped for sports or physical training

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

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

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

1. a collection of dried plants that are mounted and systematically classified for study

1. a light strong brittle grey toxic bivalent metallic element

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

1. a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite

1. an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)

1. a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite

1. a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium

1. a bass horn (brass wind instrument) that is the tenor of the tuba family

1. a rare polyvalent metallic element of the platinum group; it is found associated with platinum

1. a bicycle race held on a short course (usually less than 5 km or 3 miles)

1. a free-reeded instrument with a piano keyboard in which air is forced through the reeds by bellows

1. a vivarium in which selected living plants are kept and observed

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