anus

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anus

the excretory opening at the end of the alimentary canal

anus

[′ā·nəs]
(anatomy)
The posterior orifice of the alimentary canal.
References in periodicals archive ?
According to the Japan Ostomy Association, set up to support people with artificial anuses or urinary bladders, their families, government agencies and health care professionals, there are about 200,000 such patients nationwide, but their need for special restrooms is not widely known or understood.
They show no openings for mouths or anuses, and they have no obvious internal digestive or circulatory systems.