Definition of cloaca
cloacaeplay \-ˌkē, -ˌsē\
cloacalplay \-ˈā-kəl\ adjective
Recent Examples of cloaca from the Web
Male and female birds typically have a cloaca, or vent, which is an opening to their reproductive, digestive, and urinary systems.
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Origin and Etymology of cloaca
Latin; akin to Greek klyzein to wash — more at clyster
First Known Use: 1599
Medical Definition of cloaca
1a: the common chamber into which the intestinal, urinary, and generative canals discharge especially in monotreme mammals, birds, reptiles, amphibians, and elasmobranch fishesb: the terminal part of the embryonic hindgut of a mammal before it divides into rectum, bladder, and genital precursors
2: a passage in a bone leading to a cavity containing a sequestrum
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