Definition of penis noun in Oxford Advanced Learner's Dictionary. Meaning , pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. PENIS definition : 1. the part of a male's body that is used for urinating and for sex 2. the part of a male's body…. Learn more. A penis (/ ˈpiːnɪs /; pl.: penises or penes) is a sex organ used by male and hermaphrodite animals to copulate, [1][2] and by male placental mammals to urinate. [3][4] The term penis applies to many intromittent organs of vertebrates and invertebrates, but not to all. [5] As an example, the intromittent organ of most Cephalopoda is the hectocotylus, a specialized arm, and male spiders use their pedipalps. Even within the Vertebrata, there are morphological variants with specific ... : a male organ of copulation containing a channel through which sperm leaves the body that in mammals including human beings also serves to discharge urine from the body. Note: The penis develops from the same embryonic mass of tissue as the clitoris. Britannica.com: Encyclopedia article about penis . Love words? Need even more definitions?
