trisect

verb

tri·​sect ˈtrī-ˌsekt  trī-ˈsekt 

trisected; trisecting; trisects

transitive verb

: to divide into three usually equal parts

trisection

ˈtrī-ˌsek-shən 

trī-ˈsek-

noun

trisector

ˈtrī-ˌsek-tər 

trī-ˈsek-

noun

Examples of trisect in a Sentence

Recent Examples on the Web

Siblings Naiomi and Tyler Glasses’s Rena Bed Blanket is double-sided, one featuring cream, the other gradient browns from mushroom to cocoa, trisected by meaningful lines of crosses. — Petala Ironcloud, Architectural Digest, 9 Dec. 2025

But logistics are complex in this nation of about 50 million people that is trisected by mountain ranges and connected by long desert roads. — Julie Turkewitz, New York Times, 9 Apr. 2020

Hicks removed the dividing walls so that the room, running about 88 feet long and trisected by Corinthian columns, could be admired in all its splendor. — Robert O'Byrne, ELLE Decor, 12 Oct. 2018

Word History

Etymology

tri- + intersect

First Known Use

1695, in the meaning defined above

Rhymes for trisect

• affect
• aspect
• bedecked
• bisect
• collect
• connect
• correct
• deflect
• detect
• direct
• dissect
• effect

Kids Definition

trisect

verb

tri·​sect ˈtrī-ˌsekt  trī-ˈsekt 

: to divide into three usually equal parts

trisection

ˈtrī-ˌsek-shən 

trī-ˈsek-

noun

trisector

ˈtrī-ˌsek-tər 

trī-ˈsek-

noun