noun Date: 1799 hetero~ involving penetration of the vagina by the penis ; coitus , intercourse (as anal or oral intercourse) that does not involve penetration of the vagina by the penis
SEXUAL INTERCOURSE
Meaning of SEXUAL INTERCOURSE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012