anus
/ˈeɪ.nəs/
EꞮ · nəs (2 syllables)
English
Noun Top 15,998
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Definition
The external orifice of the rectum in most mammals, teleost fish, and many invertebrates, through which feces and flatus are ejected.
Etymology
First attested in 1658, borrowed from Middle French anus or its etymon Latin ānus (“ring, anus”), from Proto-Indo-European *h₁eh₂no- (“ring”). See also anal, annular, annelid.
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