Cotangent

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Cotangent \Co*tan"gent\ (k?-t?n"jent), 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]



From WordNet (r) 2.0 [wn]:

  cotangent
       n : ratio of the adjacent to the opposite side of a right-angled
           triangle [syn: {cotan}]