Relating to or of the nature of a cloaca; resembling or characteristic of a sewer or drainage system.
From Latin cloaca with the suffix -inal (relating to). This is an alternative form to cloacal, emphasizing the aspect of a drain or sewage system.
Ancient Rome's cloacinal engineering was so impressive that modern cities often study their designs—you could say those Romans literally wrote the book on urban plumbing!
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