cloacal

/kloʊˈeɪkəl/
adjective
  1. Relating to the cloaca (the single opening in birds, reptiles, amphibians, and some fish).
    • The cloacal opening is where a bird lays its eggs.
    • The cloacal kiss is how some birds transfer sperm during mating.
    • Veterinarians sometimes check the cloacal area of pet reptiles for infections.
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