Main Entry: pe·nis

Pronunciation: \ˈpē-nəs\

Function: noun

Inflected Form(s): plural pe·nis·es also pe·nes \ˈpē-(ˌ)nēz\

Etymology: Latin, penis, tail; akin to Old High German faselt penis, Greek peos

Date: 1668

: a male erectile organ of copulation by which urine and semen are discharged from the body and that develops from the same embryonic mass of tissue as the clitoris