Penis definition is - 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.
Micropenis is an unusually small penis. A common criterion is a dorsal (measured on top) erect penile length of at least 2.5 standard deviations smaller than the mean human penis size, or smaller than about 7 cm (2 3 ⁄ 4 in) for an adult when compared with an average erection of 12.5 cm (5 in).Specialty: Urology.
Define penis. penis synonyms, penis pronunciation, penis translation, English dictionary definition of penis. n. pl. pe·nis·es or pe·nes 1. The male organ of copulation in higher vertebrates. In mammals, it also serves as the male organ of urinary excretion. 2.
A penis that doesn't gain much length with an erection has become known as a "show-er," and a penis that gains a lot is said to be a "grower." These are not medical terms, and there aren't Author: Martin Downs, MPH.