cosecant(redirected from cosecants)
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csc θ = c/a
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.
(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
co•se•cant(koʊˈsi kənt, -kænt)
1. (in a right triangle) the ratio of the hypotenuse to the side opposite a given angle.
2. the secant of the complement, or the reciprocal of the sine, of a given angle or arc. Abbr.: csc
The ratio of the length of the hypotenuse in a right triangle to the length of the side opposite an acute angle; the inverse of the sine.