Medical Dictionary

cloaca

noun clo·aca \klō-ˈā-kə\
plural clo·acae \-ˌkē, -ˌsē\

Medical Definition of CLOACA

1
a :  the common chamber into which the intestinal, urinary, and generative canals discharge especially in monotreme mammals, birds, reptiles, amphibians, and elasmobranch fishes b :  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
clo·acal \-ˈā-kəl\ adjective

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