The median slit located inferior and posterior to the external urethral orifice in the female; the exit for menstrual flow and birth and the entrance for the penis during sexual intercourse; the size and appearance of the vaginal orifice varies inversely with that of the hymen (G. membrane), a thin fold of mucous membrane that surrounds the vaginal orifice.
Synonyms:
exact_synonym:
opening of vagina; orifice of vagina; ostium vaginae; vagina opening; vaginal orifice