From The Aquarium Wiki
Clo-a-ca n. p clo-a-cae
- a) the common cavity into which the intestinal, urinary, and generative canals open in birds, reptiles, amphibians, many fishes, and certain mammals.
- b)The posterior part of the intestinal tract in various invertebrates.
2. Ancient sewer.
[Latin cloāca, sewer, canal.]