penis

noun
pe·​nis | \ˈpē-nəs \
plural penises also penes\ˈpē-​(ˌ)nēz \

Definition of penis 

: 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

First Known Use of penis

1578, in the meaning defined above

History and Etymology for penis

Latin, penis, tail; akin to Old High German faselt penis, Greek peos

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The first known use of penis was in 1578

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More Definitions for penis

penis

noun

English Language Learners Definition of penis

: the part of the body of men and male animals that is used for sex and through which urine leaves the body

penis

noun
pe·​nis | \ˈpē-nəs \
plural penises also penes\-​ˌnēz \

Kids Definition of penis

: a male organ in mammals through which urine and sperm leave the body

penis

noun
pe·​nis | \ˈpē-nəs \
plural penes\ˈpē-​(ˌ)nēz \ or penises

Medical Definition of penis 

: the male erectile copulatory organ of a higher vertebrate animal developing from the genital tubercle that in mammals including humans usually functions as the channel by which urine and semen are discharged from the body and is typically a cylindrical organ that is suspended from the pubic arch, contains a pair of large lateral corpora cavernosa and a smaller ventromedial corpus cavernosum containing the urethra, and has a terminal glans enclosing the ends of the corpora cavernosa, covered by mucous membrane, and sheathed by a foreskin continuous with the skin covering the body of the organ

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More from Merriam-Webster on penis

Rhyming Dictionary: Words that rhyme with penis

Spanish Central: Translation of penis

Britannica.com: Encyclopedia article about penis

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