bisect

verb

bi·​sect ˈbī-ˌsekt 

bī-ˈsekt

bisected; bisecting; bisects

transitive verb

: to divide into two usually equal parts

intransitive verb

: cross, intersect

bisection

ˈbī-ˌsek-shən 

bī-ˈsek-

noun

bisectional

ˈbī-ˌsek-sh(ə-)nəl 

adjective

bisectionally adverb

Synonyms of bisect

• intersect
• cross

Examples of bisect in a Sentence

Draw a line that bisects the angle.

The city is bisected by the highway.

Recent Examples on the Web

That has severely disrupted daily life in Ukraine’s largest city, which, like much of the country, is bisected by the broad Dnipro River. — Constant Méheut, New York Times, 3 Oct. 2026

In 2022, Category 4 Hurricane Ian barreled ashore in southwestern Florida and then bisected the center of the state, causing more than 100 fatalities and billions of dollars in damage. — ABC News, 14 Sep. 2026

The glow of her computer occasionally caught her sharp cheekbones and bounced off her chin, highlighting the thin tattooed line that bisects it. — Myriam Gurba, Los Angeles Times, 9 Sep. 2026

The largest building on campus is 350,000 square feet, the width of one football field and about three fields long, bisected by a single 900-foot hallway. — Mark Dee, Idaho Statesman, 4 Sep. 2026

Word History

Etymology

bi- entry 1 + intersect

First Known Use

circa 1645, in the meaning defined at transitive sense

Rhymes for bisect

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

Kids Definition

bisect

verb

bi·​sect ˈbī-ˌsekt 

bī-ˈsekt

1

: to divide into two usually equal parts

2

: intersect sense 1, cross