Search Dictionary
Definition of trisect

trisect

/traɪˈsɛkt/
tri · sect
Adjective:trisected
•
Past Simple:trisected
•
Past Participle:trisected
•
Present Participle:trisecting
JUMP TO:

trisect Lexical Profile

trisect Game Scores & Validity

• verb

1

To divide a line, angle, or other object into three parts, especially three equal parts in geometry.

Example

"Ancient Greek mathematicians proved that it is impossible to trisect an arbitrary angle using only an unmarked straightedge and a compass."

Synonyms
View all synonyms for trisect
Antonyms
View all antonyms for trisect

Word Nuance & Usage

In geometry, 'trisect' strictly means dividing an angle or line segment into three exactly equal parts, whereas in general or figurative usage it can simply mean dividing a space or object into three sections of any size.

• Rhymes for trisect

• Nearby Words

tripper
trippy
tripwire
trisect
trisectrix
trite
triteleia

Word Origin & Etymology

Formed in the late 17th century from the Latin prefix tri- ('three') and secare ('to cut'), modeled on the word 'bisect'.

Cite this Entry

Wordmom. (2026). Definition of Trisect. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/trisect
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.