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secant

se·cant [ skənt ] (plural se·cants)


noun 
Definition:
 
1. straight line cutting curve: a straight line that intersects with a curve in two or more places

2. trigonometric function: the ratio of the hypotenuse to the side adjacent to a given angle in a right triangle

[Late 16th century. < Latin secant-, present participle of secare "cut"]
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