[ trahy-sekt, trahy-sekt ]
/ traɪˈsɛkt, ˈtraɪ sɛkt /

verb (used with object)

to divide into three parts, especially into three equal parts.

Origin of trisect

1685–95; tri- + -sect < Latin sectus, past participle of secāre to cut, sever; see section
Related formstri·sec·tion, nountri·sec·tor, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trisection

British Dictionary definitions for trisection


/ (traɪˈsɛkt) /


(tr) to divide into three parts, esp three equal parts
Derived Formstrisection (traɪˈsɛkʃən), nountrisector, noun

Word Origin for trisect

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



1660s (implied in trisection), from tri- "three" + Latin sectus "cut," past participle of secare "to cut" (see section (n.)). Probably patterned on bisect.

Online Etymology Dictionary, © 2010 Douglas Harper