clo·a·ca
[kloh-ey-kuh]
noun, plural -cae [-see]
1.
Zoology
a.
the common cavity into which the intestinal, urinary,and generative canals open in birds, reptiles,amphibians, many fishes, and certain mammals.
b.
a similar cavity in invertebrates.
2.
a sewer, especially an ancient sewer.
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