| cotangent | (n) ratio of the adjacent to the opposite side of a right-angled triangle, Syn. cotan |
| conan doyle | (n) British author who created Sherlock Holmes (1859-1930), Syn. Sir Arthur Conan Doyle, Arthur Conan Doyle, A. Conan Doyle |
| Cotangent | n. [ For co. tangens, an abbrev. of L. complementi tangens. See Tangent. ] (Trig.) The tangent of the complement of an arc or angle. See Illust. of Functions. [ 1913 Webster ] |
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