- a line or plane that bisects an angle or line segment.
Origin of bisector
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for bisector
The bisector of an angle of a triangle divides the opposite side into segments which are proportional to the adjacent sides.
This proposition enables us to compute the length of a bisector of a triangle if the lengths of the sides are known.
- a straight line or plane that bisects an angle
- a line or plane that bisects another line
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for bisector
1821; agent noun from bisect.
Online Etymology Dictionary, © 2010 Douglas Harper