| cobalt |
a chemical element that has twenty-seven protons in each nucleus and occurs as a brittle silver-white solid metal, used in a variety of alloys to increase hardness. (symbol: Co) |
| cobalt blue |
a deep blue pigment made from cobalt oxide. [2 definitions] |
| cobble1 |
a cobblestone. [3 definitions] |
| cobble2 |
to make or repair (shoes or boots). [2 definitions] |
| cobbler |
a person who makes or repairs shoes or boots. [3 definitions] |
| cobblestone |
a naturally rounded stone, about the size of a fist, formerly used in paving streets or the like. |
| cob coal |
large rounded lumps of coal that resemble cobblestones. |
| cobelligerent |
a nation not formally allied but cooperating with one or more nations waging war. |
| cobia |
a large tropical game fish with a prominent black stripe on either side. |
| COBOL |
a computer language using English syntax and a large vocabulary of English words (acronym for "common business-oriented language"). |
| cobra |
any of several venomous snakes of Asia and Africa that rear up and flatten the skin of the neck when threatened. [2 definitions] |
| cobweb |
a web spun by a spider, esp. an abandoned one, or a single strand of this web. [5 definitions] |
| coca |
either of two shrubs native to the Andes, the dried leaves of which are the source of cocaine and other alkaloids. [2 definitions] |
| cocaine |
a substance extracted from coca leaves and used as a surface anesthetic or, often illegally, as a stimulating drug. |
| cocaptain |
combined form of captain. |
| cocatalyst |
combined form of catalyst. |
| -coccal |
of, concerning, or caused by a (specified) coccus. |
| -coccus |
a round or berry-shaped microorganism. |
| coccus |
a sphere-shaped bacterium. |
| coccyx |
the small triangular bone at the lower end of the spinal column, consisting of several fused vertebrae. |
| cochair |
combined form of chair. |