| 单词 | cotangent |
| 释义 | cotangent —cotangential /koh'tan jen"sheuhl/, adj. /koh tan"jeuhnt, koh"tan'-/, n. Trig. 1. (in a right triangle) the ratio of the side adjacent to a given angle to the side opposite. 2. the tangent of the complement, or the reciprocal of the tangent, of a given angle or arc. Abbr.: cot, ctn Also, cotan /koh"tan'/. [1625-35; < NL cotangent- (s. of cotangens). See CO-, TANGENT] |
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