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heterosexuality

[het-er-uh-sek-shoo-al-i-tee or, esp. British, -seks-yoo-]
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noun
  1. sexual feeling or behavior directed toward a person or persons of the opposite sex.
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Origin of heterosexuality

First recorded in 1895–1900; hetero- + sexuality
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for heterosexuality

heterosexuality

noun
  1. sexual attraction to or sexual relations with a person or persons of the opposite sexCompare homosexuality
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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 heterosexuality

n.

1900; see heterosexual + -ity.

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Online Etymology Dictionary, © 2010 Douglas Harper

heterosexuality in Medicine

heterosexuality

(hĕt′ə-rō-sĕk′shōō-ălĭ-tē)
n.
  1. Erotic attraction, predisposition, or sexual behavior between persons of the opposite sex.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

heterosexuality in Culture

heterosexuality

Sexual attraction between a male and a female. (Compare bisexuality and homosexuality.)

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.