[ bahy-sek-shoo-uhl ]
/ baɪˈsɛk ʃu əl /
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See synonyms for: bisexual / bisexuality on Thesaurus.com

noting or relating to a person who is sexually or romantically attracted to people of two or more genders.
  1. of both biological sexes.
  2. combining male and female organs in one individual.
Sometimes Offensive. a person who is sexually or romantically attracted to people of two or more genders.
Biology. an animal or plant that has the reproductive organs of both biological sexes.
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of bisexual

First recorded in 1815–25; bi-1 + sexual

usage note for bisexual

As with many other labels used to describe people, the adjective form is preferred over the noun form, and the noun, while acceptable in the plural, can be offensive in the singular.
Traditionally, bisexual has referred to romantic, emotional, or sexual attraction to two, and no more than two, genders, specifically men and women. However, the term is increasingly being used to refer to a level of sexual fluidity in which an individual moves bidirectionally along a spectrum of sexuality. This newer sense acknowledges attraction to people who do not fall within the gender binary.


bi·sex·u·al·i·ty [bahy-sek-shoo-al-i-tee] /baɪˌsɛk ʃuˈæl ɪ ti/ bi·sex·u·al·ism, nounbi·sex·u·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use bisexual in a sentence

British Dictionary definitions for bisexual

/ (baɪˈsɛksjʊəl) /

sexually attracted by both men and women
showing characteristics of both sexesa bisexual personality
(of some plants and animals) having both male and female reproductive organs
of or relating to both sexes
a bisexual organism; a hermaphrodite
a bisexual person

Derived forms of bisexual

bisexuality (baɪˌsɛksjʊˈælɪtɪ) or esp US bisexualism, nounbisexually, adverb
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

Medical definitions for bisexual

[ bī-sĕkshōō-əl ]

Relating to both sexes.
Having both male and female reproductive organs; hermaphroditic.
Relating to or having a sexual orientation to persons of either sex.
A bisexual organism; a hermaphrodite.
A bisexual person.

Other words from bisexual

bi′sex•u•ali•ty (-ălĭ-tē) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.