- sexual intercourse; copulation.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for sex act
If the sex-act is evil because it is physical, then it is equally evil to eat or drink.
It Changes the sex-act from an incident or a result to a means or a cause.
As I understand Herr Bachofen, the sex-act was the means which first opened up ways to great heights, but also to great depths.The Position of Woman in Primitive Society
C. Gasquoine Hartley
In this connexion it may be well to call attention to the inconsistency of the male in making the sex-act a subject for humour.
The word thus called forth by the common labor had two meanings, designating the sex-act as well as the equivalent labor-activity.A General Introduction to Psychoanalysis