cloaca

Noun
  1. (zoology) the cavity (in birds, reptiles, amphibians, most fish, and monotremes but not mammals) at the end of the digestive tract into which the intestinal, genital, and urinary tracts open (synset 105311840)
    referred to in: zoological science, zoology - the branch of biology that studies animals
    is a type of: bodily cavity, cavity, cavum - (anatomy) a natural hollow or sinus within the body
  2. A waste pipe that carries away sewage or surface water (synset 104186187)
    is a type of: drain, drainpipe, waste pipe - a pipe through which liquid is carried away
    is a part of: sewage system, sewage works, sewer system - facility consisting of a system of sewers for carrying off liquid and solid sewage
    same as: sewer, sewerage

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