person who or whatever bisects esp Geom a straight line which bisects a perspective
- a person who, or that which, bisects; esp. (Geom.) a straight line which bisects an angle.
1821; representative noun from bisect.
(letter.) One who, or what, bisects; esp. (Geom.) a straight line which bisects an angle.
A point which divides a line, or a line which divides an angle, into two equal parts; in crystallography it denotes the bisector of the angle between the optic axes.