penis

n. male sexual organ homologous with the clitoris

For the symbol of the erect penis, see phallus. The penis (plural penises, penes) is an external sexual organ of certain biologically male organisms. The penis is a reproductive organ, technically an intromittent organ, and for mammals, additionally serves as the external organ of urination.
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Penis /pe·nis/ the male organ of urination and copulation. concealed penis a small penis hidden by a skin abnormality or the suprapubic fat pad. [more]Penis - Community and Resources

Noun
1. the male organ of copulation (`member' is a euphemism)
(synonym) phallus, member
(hypernym) erectile organ
(hyponym) cock, prick, dick, shaft, pecker, peter, tool, putz
(part-holonym) male genitalia, male genitals, male genital organ, family jewels
(part-meronym) glans penis

n. penis, male sexual organ