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Medical Term:


Pronunciation: pe'nis, pe'nez, pe'nis-ez


The organ of copulation and urination in the male; formed of three columns of erectile tissue, two arranged laterally on the dorsum (corpora cavernosa penis) and one median ventrally (corpus spongiosum penis); the urethra traverses the latter; the extremity (glans penis) is formed by an expansion of the corpus spongiosum and is more or less completely covered by a free fold of skin (prepuce).

Synonym(s): intromittent organ, membrum virile, phallus2, priapus, virga

[L. tail]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.