cloaca.
A sewer.
Meaning & usage
A sewer.
The opening in reptiles, amphibians and birds, as well as elasmobranchians, lobe-finned fishes, and monotreme mammals, which serves as the common outlet for the urogenital ducts and rectum.
An outhouse or lavatory.
A duct through which gangrenous material escapes a body.
Structure in the embryo during the development of the reproductive and urinary systems.
Where this word comes from
Borrowed from Latin cloāca (“sewer”), related to cluō (“cleanse; purge”), but the derivation is uncertain.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.