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heterosexual

American  
[het-er-uh-sek-shoo-uhl, -seks-yoo-] / ˌhɛt ər əˈsɛk ʃu əl, -ˈsɛks yu- /

adjective

  1. of, relating to, or exhibiting heterosexuality, sexual desire or behavior directed toward people of the other binary gender.

  2. Biology. of or relating to different sexes.

    heterosexual fraternal twins.


noun

  1. a person who is sexually or romantically attracted primarily to people of the other binary gender.

heterosexual British  
/ ˌhɛtərəʊˈsɛksjʊəl /

noun

  1. a person who is sexually attracted to the opposite sex

"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

adjective

  1. of or relating to heterosexuality

"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

Etymology

Origin of heterosexual

First recorded in 1890–95; hetero- + sexual

Explanation

A heterosexual person is attracted to people of the opposite sex. Boys who like girls and women who like men are heterosexual. Being heterosexual has long been considered "normal" in our society. When you think of a married couple or parents, it's usually been a man and woman — in other words, a heterosexual couple. However, being heterosexual is only one sexual orientation. Other people are gay, or homosexual. Our culture is slowly starting to accept that heterosexuality isn't the only acceptable sexual orientation. Another word for heterosexual is straight.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Slemrod surmised that by 2030, the number of man-first tax returns might be 3 to 4 percentage points lower, or about 85% of heterosexual married couples.

From MarketWatch • Mar. 23, 2026

She was able to examine heterosexual couples working in the same establishment, and where one partner is a manager and the other is not.

From The Wall Street Journal • Feb. 28, 2026

Projections suggest the global surrogacy market will exceed $129 billion by 2034—fueled not only by men but also by heterosexual couples with fertility challenges.

From The Wall Street Journal • Nov. 19, 2025

In May, Jessica Gonzales sued the bar, its owner, manager and an employee, alleging she faced discrimination and harassment as a cisgender, heterosexual woman and was subjected to an unsafe work environment.

From Los Angeles Times • Aug. 2, 2025

And that person, at least in high-school heterosexual relationships, is definitely the girl.

From "An Abundance of Katherines" by John Green