[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 bisectfork
Examples from the Web for bisect
Contemporary Examples of bisect
Historical Examples of bisect
We must bisect as far as may be, but the division is after all to be into limbs, not parts.
In addition they learned how to bisect and trisect the angle.
After bisecting the Antiphasis, you can proceed to bisect each of the sections; and so on.
Bisect its short edges and rule a line connecting these points.
Now we do some more of that bisecting; this time we bisect EC at F.
British Dictionary definitions for bisect
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
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for bisect
"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.