Definition of sexual intercourse
1
: heterosexual intercourse involving penetration of the vagina by the penis : coitus
2
: intercourse (such as anal or oral intercourse) that does not involve penetration of the vagina by the penis
Test Your Vocabulary
Name That Color
-
- Name that color:

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share sexual intercourse
Time Traveler for sexual intercourse
The first known use of sexual intercourse was in 1753
See more words from the same year