Words Starting With OS
Here's the list of all the 340 Words Starting With OS 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) | |
|---|---|
| os | 1. a mouth or mouthlike opening 2. rigid connective tissue that makes up the skeleton of vertebrates More Definitions → |
| osteoporosis | 1. abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium; most common in postmenopausal women More Definitions → |
| oscillator | 1. generator that produces sonic oscillations or alternating current More Definitions → |
| osprey | 1. large harmless hawk found worldwide that feeds on fish and builds a bulky nest often occupied for years More Definitions → |
| osteoarthritis | 1. chronic breakdown of cartilage in the joints; the most common form of arthritis occurring usually after middle age More Definitions → |
| oscillation | 1. the process of oscillating between states 2. (physics) a regular periodic variation in value about a mean More Definitions → |
| ostrich | 1. a person who refuses to face reality or recognize the truth (a reference to the popular notion that the ostrich hides from danger by burying its head in the sand) 2. fast-running African flightless bird with two-toed feet; largest living bird More Definitions → |
| osmosis | 1. (biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal More Definitions → |
| ostensibly | 1. from appearances alone More Definitions → |
| oscilloscope | 1. electronic equipment that provides visual images of varying electrical quantities More Definitions → |
| oscillating | 1. having periodic vibrations More Definitions → |
| ostomy | 1. surgical procedure that creates an artificial opening for the elimination of bodily wastes More Definitions → |
| osteopathy | 1. therapy based on the assumption that restoring health is best accomplished by manipulating the skeleton and muscles More Definitions → |
| osmotic | 1. of or relating to osmosis More Definitions → |
| oscillatory | 1. having periodic vibrations More Definitions → |
| osteosarcoma | 1. malignant bone tumor; most common in children and young adults where it tends to affect the femur More Definitions → |
| osteomyelitis | 1. an inflammation of bone and bone marrow (usually caused by bacterial infection) More Definitions → |
| oscillate | 1. be undecided about something; waver between conflicting positions or courses of action 2. move or swing from side to side regularly More Definitions → |
| ostensible | 1. appearing as such but not necessarily so 2. represented or appearing as such; pretended More Definitions → |
| osteotomy | 1. surgical sectioning of bone More Definitions → |
| osmium | 1. a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known More Definitions → |
| ossification | 1. the developmental process of bone formation 2. the calcification of soft tissue into a bonelike material More Definitions → |
Jump to Words by Length
2-Letter Words Starting With OS
3-Letter Words Starting With OS
4-Letter Words Starting With OS
5-Letter Words Starting With OS
6-Letter Words Starting With OS
7-Letter Words Starting With OS
8-Letter Words Starting With OS
9-Letter Words Starting With OS
10-Letter Words Starting With OS
11-Letter Words Starting With OS
| 21 more 11-Letter Words Starting With OS → | |
12-Letter Words Starting With OS
| 8 more 12-Letter Words Starting With OS → | |