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

Definition of bisect

transitive verb

: to divide into two usually equal parts

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Other Words from bisect

bisection \ ˈbī-​ˌsek-​shən How to pronounce bisect (audio) , bī-​ˈsek-​ \ noun
bisectional \ ˈbī-​ˌsek-​shnəl How to pronounce bisect (audio) , -​shə-​nᵊl \ adjective
bisectionally adverb

Synonyms for bisect


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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 Trail—33 miles of it bisect the park—in uncharacteristic 80-degree heat. Emily Pennington, Outside Online, 24 Mar. 2021 The dream of a city where 8- and 80-year-old cyclists could bisect the center with confidence seemed a hundred years away. Peter Hartlaub, San Francisco Chronicle, 12 Mar. 2021 Greens Creek facilities bisect the monument boundary between the Admiralty Island Monument and more open-access lands of the Tongass National Forest. Elwood Brehmer, Anchorage Daily News, 15 Oct. 2020 Traffickers seemed to enter every day, drilling tunnels that bisect the sewer like holes in Swiss cheese, each of them connecting the pipeline to Arizona. Kevin Sieff, Anchorage Daily News, 13 Oct. 2020 Traffickers seemed to enter every day, drilling holes that bisect the sewer like Swiss cheese, each of them connecting the pipeline to Arizona. Kevin Sieff, Washington Post, 13 Oct. 2020 Holloway said work has begun on relocating part of the railroad lines that currently bisect the campus. Judith Kohler, The Denver Post, 11 Jan. 2020 The Belgian town, Baarle-Hertog, is an enclave inside the Netherlands, just 10 kilometers or so from the border, and bisected in dizzying ways by the Dutch town, Baarle-Nassau. Mick Krever, CNN, 15 May 2020 On a cold November morning Cove and DeGayner cruised the two-lane highway that bisects Crocodile Lake, armed with a list of nest sites to check. Carrie Arnold, Scientific American, 29 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bisect.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bisect

circa 1645, in the meaning defined at transitive sense

History and Etymology for bisect

bi- entry 1 + intersect

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Time Traveler for bisect

Time Traveler

The first known use of bisect was circa 1645

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Statistics for bisect

Cite this Entry

“Bisect.” Dictionary, Merriam-Webster, Accessed 14 Jun. 2021.

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More Definitions for bisect



English Language Learners Definition of bisect

: to divide (something) into two equal parts


bi·​sect | \ ˈbī-ˌsekt How to pronounce bisect (audio) \
bisected; bisecting

Kids Definition of bisect

1 : to divide into two equal parts
2 : intersect


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