cloacae n. 阴沟, 厕所, 下水道, 泄殖腔
Cloaca \Clo"a"ca\, n.; pl. {Cloac[ae]}. [L.]
1. A sewer; as, the Cloaca Maxima of Rome.
2. A privy.
3. (Anat.) The common chamber into which the intestinal,
urinary, and generative canals discharge in birds,
reptiles, amphibians, and many fishes.