cloaca Meaning and Definition
1. n. a waste pipe that carries away sewage or surface water
In animal anatomy, a cloaca /kloʊˈeɪkə/ kloh-AY-kə (plural cloacae /kloʊˈeɪsiː/ kloh-AY-see or /kloʊˈeɪkiː/ kloh-AY-kee) is the posterior orifice that serves as the only opening for the digestive, reproductive, and urinary tracts (if present) of certain animals, opening at the vent.
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