n. [ For co. secans, an abbrev. of L. complementi secans. ] (Trig.) The secant of the complement of an arc or angle. See Illust. of Functions. [ 1913 Webster ]
n. [ Cf. F. sécante. See Secant, a. ] 1. (Geom.) A line that cuts another; especially, a straight line cutting a curve in two or more points. [ 1913 Webster ]
2. (Trig.) A right line drawn from the center of a circle through one end of a circular arc, and terminated by a tangent drawn from the other end; the number expressing the ratio of this line to the radius of the circle. See Trigonometrical function, under Function. [ 1913 Webster ]
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