fossa of vestibule of vagina

n.
  1. The portion of the vestibule of the vagina located between the frenulum of the pudendal lips and the posterior commissure of the vulva.navicular fossa of vestibule of vagina
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.