The Collaborative International Dictionary
Subvaginal
Subvaginal \Sub*vag"i*nal\, a. (Anat.) Situated under or inside a sheath or vaginal membrane; as, the subvaginal, or subdural, spaces about the optic nerve.
Wiktionary
subvaginal
a. (context anatomy English) Situated under or inside a sheath or vaginal membrane.