[verb bahy-sekt, bahy-sekt; noun bahy-sekt]
verb (used with object)
to cut or divide into two equal or nearly equal parts.
Geometry. to cut or divide into two equal parts: to bisect an angle.
to intersect or cross: the spot where the railroad tracks bisect the highway.
verb (used without object)
to split into two, as a road; fork: There's a charming old inn just before the road bisects.
Also called split. Philately. a portion of a stamp, usually half, used for payment of a proportionate amount of the face value of the whole stamp.
Origin of bisect
1640–50; bi-1Related formsbi·sec·tion, nounbi·sec·tion·al, adjectivebi·sec·tion·al·ly, adverb
< Latin sectus,
past participle of secāre
to cut, sever; see section
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for bisectionbreakup
Examples from the Web for bisection
Historical Examples of bisection
Mr. Frazer does not here pretend to guess why the bisection occurred.
The 'bisection' of his theory could not, I fear, be 'gradual.'
Bacteria increase by bisection, and when the surrounding conditions are favorable their rate of production is marvellous.
Before the bisection is motion; after the bisection is rest.
Or were totem names given, nobody knows why, to the two phratries at the time when the 'bisection' of the commune was made?
British Dictionary definitions for bisection
Derived Formsbisection (baɪˈsɛkʃən), noun
(tr) maths to divide into two equal parts
to cut or split into two
Word Origin for bisect
C17: bi- 1 + -sect from Latin secāre to cut
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for bisection
"division in two," 1650s, noun of state from bisect. Related: Bisectional.
"to cut in two," 1640s, from Modern Latin bisectus, from Latin bi- "two" (see bi-) + secare "to cut" (see section (n.)). Related: Bisected; bisecting.
Online Etymology Dictionary, © 2010 Douglas Harper
To cut or divide into two parts, especially two equal parts.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.