- Cutting; divivding into two parts; as, a secant line. - A line that cuts another; especially, a straight line
cutting a curve in two or more points. - 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 line of this line to the radius of
the circle. See Trigonometrical function, under Function.
Definition
[ a.]