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bisect

verb

bi·​sect ˈbī-ˌsekt How to pronounce bisect (audio)
bī-ˈsekt
bisected; bisecting; bisects

transitive verb

: to divide into two usually equal parts
bisection
ˈbī-ˌsek-shən How to pronounce bisect (audio)
bī-ˈsek-
noun
bisectional adjective
bisectionally adverb

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As rebel and former regime forces bisected regions and cities, people left their homes. Emily Feng, NPR, 25 Nov. 2025 Day 3 Waterfall Hunting Chattanooga sits on the Tennessee River, surrounded by steep mountains bisected by spring-fed creeks. Graham Averill, Outside, 20 Nov. 2025 Successfully translating the songs and script of a beloved musical onto film is no easy feat, but the task was made even more challenging from Chu and his team when it was decided to bisect the story into two separate parts. Kristin Robinson, Billboard, 6 Nov. 2025 Perhaps the most intriguing thing shown here are the tracks bisecting Park Street. Randy Mason, Kansas City Star, 15 Oct. 2025 See All Example Sentences for bisect

Word History

Etymology

bi- entry 1 + intersect

First Known Use

circa 1645, in the meaning defined at transitive sense

Time Traveler
The first known use of bisect was circa 1645

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Cite this Entry

“Bisect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bisect. Accessed 26 Nov. 2025.

Kids Definition

bisect

verb
bi·​sect ˈbī-ˌsekt How to pronounce bisect (audio)
bī-ˈsekt
1
: to divide into two usually equal parts
2

More from Merriam-Webster on bisect

Last Updated: - Updated example sentences
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