AskDefine | Define secant

Dictionary Definition



1 a straight line that intersects a curve at two or more points
2 ratio of the hypotenuse to the adjacent side of a right-angled triangle [syn: sec]

User Contributed Dictionary



  1. A straight line that intersects a curve at two or more points.
  2. In a right triangle, the reciprocal of the cosine of an angle. Symbol: sec

Related terms


in geometry

Extensive Definition

Secant is a term in mathematics. It comes from the Latin secare (to cut). It can refer to:
secant in Danish: Sekant
secant in German: Sekante
secant in Basque: Sekante
secant in French: Sécante
secant in Italian: Secante
secant in Portuguese: Secante
secant in Serbian: Секанс
secant in Swedish: Sekant

Synonyms, Antonyms and Related Words

air line, axis, beeline, chiasmal, chiasmic, chiastic, chord, crisscross, cross, crosscut, crossed, crossing, cut across, decussate, decussated, diagonal, diameter, direct line, directrix, edge, great-circle course, intersected, intersecting, normal, perpendicular, radius, radius vector, right line, segment, shortcut, side, straight, straight course, straight line, straight stretch, straightaway, streamline, tangent, transversal, vector
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