one's natural preference in sexual partners; predilection for homosexuality, heterosexuality, or bisexuality.
Origin of sexual orientation
First recorded in 1990–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
The direction of one's sexual interest toward members of the same, opposite, or both sexes, especially a direction seen to be dictated by physiologic rather than sociologic forces. Replaces sexual preference in most contemporary uses.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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.