The Collaborative International Dictionary of English v.0.48:

Vaginal \Vag"i*nal\, a. [Cf. F. vaginal.]
   [1913 Webster]
   1. Of or pertaining to a vagina; resembling a vagina, or
      sheath; thecal; as, a vaginal synovial membrane; the
      vaginal process of the temporal bone.
      [1913 Webster]

   2. (Anat.) Of or pertaining to the vagina of the genital
      canal; as, the vaginal artery.
      [1913 Webster]

WordNet (r) 3.0 (2006):

vaginal
    adj 1: of or relating to the vagina; "vaginal suppository"

Moby Thesaurus II by Grady Ward, 1.0:

18 Moby Thesaurus words for "vaginal":
   cervical, clitoral, genital, integumental, integumentary, ovarian,
   penial, penile, phallic, scrotal, seminal, spermatic, tegmental,
   tegumental, testicular, uterine, vulval, vulvar