- To bisect is defined as to cut in half.
An example of to bisect is to split a sandwich in two equal parts.
This pear has been bisected.
- to cut in two
- Geom. to divide into two equal parts
Origin of bisect; from Modern Latin bisectus, past participle of bisecare ; from Classical Latin bi-, bi- + secare, to cut: see saw
verbbi·sect·ed, bi·sect·ing, bi·sects
(third-person singular simple present bisects, present participle bisecting, simple past and past participle bisected)