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pe·nis (pē′nis)

noun pl. penises -·nises or penes -·nes′ (-nēz′)

the male organ of sexual intercourse: in mammals it is also the organ through which urine is ejected

Origin: L, tail, penis < IE base *pes- > Sans pásas-, Gr peos, OE fæsl, penis

Related Forms:

  • penile pe′·nile′ (-nīl′, -nil) adjective

pe·nis (pēˈnĭs)

noun pl. penises pe·nis·es or pe·nes (-nēz)
  1. The male organ of copulation in higher vertebrates, homologous with the clitoris. In mammals, it also serves as the male organ of urinary excretion.
  2. Any of various copulatory organs in males of lower animals.

Origin: Latin pēnis; see pes- in Indo-European roots.

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