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sine1 definition

sine (sīn)

noun

the reciprocal of the cosecant; specif.,
  1. the ratio of the opposite side of a given acute angle in a right triangle to the hypotenuse
  2. an equivalent, positive or negative ratio for certain related angles (Ex.: the sine of 57° or 123° is .8387, of 237° or 303° is -.8387) or real numbers representing radians (Ex.: the sine of .9948 radians (57°) is .8387)

Etymology: ML sinus (< L, a bend, curve, hanging fold of a toga), used as transl. of Ar jaib, sine, bosom of a garment

sine2 definition

sine (sī′nē)

without

Etymology: L

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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