Search Result for "introitus": 
Wordnet 3.0

NOUN (1)

1. entrance or opening to a hollow organ or tube (especially the vaginal opening);
- Example: "the introitus of the vagina"



WordNet (r) 3.0 (2006):

introitus
    n 1: entrance or opening to a hollow organ or tube (especially
         the vaginal opening); "the introitus of the vagina"