- to divide into three parts, especially into three equal parts.
Origin of trisect
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for trisection
There is one trisection which is of more importance than that of the angle.
He also contributes to the history of the trisection of an angle.
In other words, the trisection of any angle, by the use of the straightedge and compasses alone, is impossible.
Geometry versus Algebra; or the trisection of an angle geometrically solved.
A rule for the cubic equation by which the problem of trisection is solved has been given by Cardan.Scientific Studies
- (tr) to divide into three parts, esp three equal parts
C17: tri- + -sect from Latin secāre to cut
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 trisection
Online Etymology Dictionary, © 2010 Douglas Harper