cloaca vs outlet

cloaca

noun
  • A duct through which gangrenous material escapes a body. 

  • A sewer. 

  • The duct in reptiles, amphibians and birds, as well as most fish and some mammals, which serves as the common outlet for urination, defecation, and reproduction. 

  • An outhouse or lavatory. 

outlet

noun
  • A vent or similar passage to allow the escape of something. 

  • A river that runs out of a lake. 

  • Something which allows for the release of one's desires. 

  • A shop that sells the products of a particular manufacturer or supplier. 

  • A wall-mounted device such as a socket or receptacle connected to an electrical system at which current is taken to supply utilization equipment or appliances. 

How often have the words cloaca and outlet occurred in a corpus of books? (source: Google Ngram Viewer )