Definition of penis in English:


nounPlural penises, Plural penes

  • 1The male genital organ of higher vertebrates, carrying the duct for the transfer of sperm during copulation. In humans and most other mammals it consists largely of erectile tissue and is used also for urination.

    phallus, member, male member, organ, male organ, sex, erection
    View synonyms
    1. 1.1Zoology A type of male copulatory organ present in some invertebrates, such as gastropod molluscs.


Late 17th century: from Latin, ‘tail, penis’.