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1. (n.) cloaca
the common cavity into which the intestinal, urinary, and generative canals open in birds, reptiles, amphibians, many fishes, and certain mammals.
2. cloaca
a similar cavity in invertebrates.
3. cloaca
a sewer, esp. an ancient sewer.
Etymology: (1650–60; < L clo(u)āca, cluāca sewer, drain)
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| Definition of 'cloaca' |
Princeton's WordNet |
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1. (noun) cloaca
(zoology) the cavity (in birds, reptiles, amphibians, most fish, and monotremes but not mammals) at the end of the digestive tract into which the intestinal, genital, and urinary tracts open
2. (noun) sewer, sewerage, cloaca
a waste pipe that carries away sewage or surface water
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| Definition of 'cloaca' |
Webster Dictionary |
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1. (noun) cloaca
a sewer; as, the Cloaca Maxima of Rome
2. (noun) cloaca
a privy
3. (noun) cloaca
the common chamber into which the intestinal, urinary, and generative canals discharge in birds, reptiles, amphibians, and many fishes
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| Definition of 'cloaca' |
U.S. National Library of Medicine |
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1. cloaca
A dilated cavity extended caudally from the hindgut. In adult birds, reptiles, amphibians, and many fishes but few mammals, cloaca is a common chamber into which the digestive, urinary and reproductive tracts discharge their contents. In most mammals, cloaca gives rise to LARGE INTESTINE; URINARY BLADDER; and GENITALIA.
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Definitions of cloaca 
