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penis

[ pee-nis ]
/ ˈpi nɪs /
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noun, plural pe·nis·es, pe·nes [pee-neez]. /ˈpi niz/. Anatomy, Zoology.

the male organ of copulation and, in mammals, of urinary excretion.

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Origin of penis

First recorded in 1685–95, penis is from the Latin word pēnis tail, penis
pe·nile [peen-l, pee-nahyl], /ˈpin l, ˈpi naɪl/, pe·ni·al [pee-nee-uhl], /ˈpi ni əl/, adjective
penal, penile
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for penis

penis
/ (ˈpiːnɪs) /

noun plural -nises or -nes (-niːz)

the male organ of copulation in higher vertebrates, also used for urine excretion in many mammals
C17: from Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for penis

penis
[ pēnĭs ]

n. pl. pe•nis•es

The male organ of copulation and of urinary excretion, formed by three columns of erectile tissue, two arranged laterally on the dorsum and one medianly below; the extremity is formed by an expansion of the corpus spongiosum, covered by a free fold of skin.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for penis

penis
[ pēnĭs ]

Plural penises penes (nēz)

The male reproductive organ of mammals and some reptiles and birds. In mammals, the penis contains the urethra, which carries urine from the bladder and releases sperm during reproduction.
A similar organ found in the males of some invertebrate animals.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for penis

penis

The organ of the male reproductive system through which semen passes out of the body during sexual intercourse. The penis is also an organ of urination.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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