(zoology) one of a pair of glands that are situated near the anus in some mammals and secrete an odorous substance
- Perineal hernia
perineal hernia n. A hernia protruding through the pelvic diaphragm. Also called perineocele.
- Perineal nerve
perineal nerve n. Any of the superficial terminal branches of the pudendal nerve, supplying most of the muscles and the skin of the perineum.
- Perineal section
perineal section n. An incision through the perineum, especially external urethrotomy.
- Perineal space
perineal space n. Either of two perineal spaces, designated deep and superficial.