cosecant

• POS: Noun
• HYPHEN: co=se=cant

CIDE DICTIONARY

cosecant, n. [For co. secans, an abbrev. of L. complementi secans.].

 The secant of the complement of an arc or angle. See Illust. of Functions.  [1913 Webster]

OXFORD DICTIONARY

cosecant, n. Math. the ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine.

Etymology

mod.L cosecans and F cos{eacute}cant (as CO-, SECANT)