| Word | Definitions | Synonyms |
|---|---|---|
| cosec | (noun) ratio of the hypotenuse to the opposite side of a right-angled triangle | Synonyms: cosecant |
| cosecant | (noun) ratio of the hypotenuse to the opposite side of a right-angled triangle | Synonyms: cosec |
| coseismal | (adjective) being where earthquake waves arrive simultaneously | Synonyms: coseismic |
| coseismic | (adjective) being where earthquake waves arrive simultaneously | Synonyms: coseismal |