'Perineum' definitions:

Definition of 'perineum'

(from WordNet)
noun
The general region between the anus and the genital organs

Definition of 'Perineum'

From: GCIDE
  • Perineum \Per`i*ne"um\, n. [NL., fr. Gr. peri`naion about + peri`neos.] (Anat.) The region which is included within the outlet of the pelvis, and is traversed by the urinogenital canal and the rectum. [1913 Webster]