(hī′mĕn)
[Pronunciation]
[Gr.]

A fold of mucous membrane that partially covers the entrance to the vagina.
Contrary to folklore, the presence or absence (or rupture) of the hymen cannot be used to prove or disprove virginity or history of sexual intercourse. Pregnancy has been known to occur even when the hymen is intact.
hymenal, (-ăl)
[Pronunciation]
adj.

Subentries:
annular hymen
hymen biforis
cribriform hymen
hymen denticulatus
fenestrated hymen
imperforate hymen
lunar hymen
ruptured hymen
septate hymen
unruptured hymen