- genital contact, especially the insertion of the penis into the vagina followed by orgasm; coitus; copulation.
Origin of sexual intercourse
First recorded in 1790–1800
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the act carried out for procreation or for pleasure in which, typically, the insertion of the male's erect penis into the female's vagina is followed by rhythmic thrusting usually culminating in orgasm; copulation; coitusRelated adjective: venereal
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
- Coitus between humans.
- Sexual union between humans involving genital contact other than vaginal penetration by the penis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.