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Related to cloacal kiss: avian cloaca


n. pl. clo·a·cae (-sē′)
1. A sewer or latrine.
2. Zoology
a. The common cavity that serves as the opening for the intestinal, genital, and urinary tracts in many vertebrates, including amphibians, reptiles, birds, monotremes, and some fishes.
b. The posterior part of the intestinal tract in various invertebrates.

[Latin cloāca, sewer, canal.]

clo·a′cal (-kəl) adj.