|bəl(ˌ)bōˌkavə(r)ˈnōsəs noun
( plural bulbocaverno·si -ōˌsī, -ōˌsē)
Etymology: New Latin, from bulb- + Latin cavernosus hollow — more at cavernous
: a muscle in the male surrounding and compressing the bulb of the penis and the bulbar portion of the urethra and in the female divided into lateral halves that extend from immediately behind the clitoris along either side of the vagina to the central tendon of the perineum and serve to compress the vagina — called also in the female sphincter vaginae