definition of secant
definition of secant 1 a straight line cutting a curve at two or more points 2 a straight line drawn from the center of a circle through one end of a circular arc to a tangent drawn from the other end of the arcefinition of secant 1 a straight line cutting a curve at two or more points 2 a straight line drawn from the center of a circle through one end of a circular arc to a tangent drawn from the other end of the arc