co·se·cant (k -s  k nt , -k nt)n. Abbr. csc 1. The reciprocal of the sine of an angle in a right triangle. 2. The secant of the complement of a directed angle or arc. |   csc  = c/a |
cosecant [kəʊˈsiːkənt]
n
(Mathematics) (of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the hypotenuse to that of the opposite side; the reciprocal of sine Abbreviation cosec
| cosecant (k-sknt) 1. The ratio of the length of the hypotenuse in a right triangle to the length of the side opposite an acute angle. The cosecant is the inverse of the sine. 2. The reciprocal of the ordinate of the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative. 3. A function of a number x, equal to the cosecant of an angle whose measure in radians is equal to x. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | cosecant - ratio of the hypotenuse to the opposite side of a right-angled triangle circular function, trigonometric function - function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle |
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