duckbill

Noun
  1. Primitive fish of the Mississippi valley having a long paddle-shaped snout (synset 102642235)
  2. Small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet;
    Only species in the family Ornithorhynchidae (synset 101875951)
Adjective
  1. Having a beak resembling that of a duck (synset 300208492)
    "a duck-billed dinosaur"

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