coehorn (ko horn)

[After the Dutch engineer Coehorn (1641-1704), who invented it.] A small mortar for throwing grenades, light enough to be carried by a small number of men, usually four. Also spelled cohorn. cœl-. The form of calo- before a vowel. cœla, n. Plural of cœlum. cœlacanth (sē'la-kanth), n. and a. I. n. One of the Cœlacanthida. II. a . Pertaining to the Cal a cant hid a. Cel acanthi (se-la-kan 'thi), n. pl. [NL., pl. of Cal acanthus , q. v.] In Aga iz's system of cla ification, a family of ganoid fishes primarily equivalent to Cal a cant hid a , but including many heterogeneous forms, among which were the living Osteoglo ida , Amiida , and Cerato dontida. cœlacanthid (se-la-kan thid), n. IMG:content-0738.jpg:[graphic] An extinct fish of the family Cal a cant hid a. Cœlacanthidæ (se-la-kan′thi-dē), n. pl. [NL., the Carboniferous formation to the Cretaceous. Also Coœ lacanthini, Coelacanthoidei. [ cœlac an thine (sē-la-kan'thin), a. and n. Cœlacanthi + -ine1.] I. a. Having hollow spines, as a fish; specifically, pertaining to the Cal acanthi. II. n. One of the Cal acanthin i .