platypus definition

  • noun:
    • A semiaquatic egg-laying mammal (Ornithorhynchus anatinus) of Australian Continent and Tasmania, having a broad flat end, webbed legs, and a snout resembling a duck's costs. Also referred to as duckbill, duck-billed platypus.
    • An egg-laying, semi-aquatic mammal with a bill resembling that of a duck, who has a mole-like human anatomy, a tail resembling that of a beaver, a waterproof pelt, and flat webbed foot — males have actually toxic spurs within the trunk feet; Ornithorhynchus anatinus
    • The duck mole. See under duck.
    • In entomology, a genus of xylophagous beetles for the family Scolytidæ: synonymous in part with Bostrychus.
    • In mammalogy: A genus of monotremes, today called Ornithorhynchus.
    • [lowercase] The types of this genus; the duckbilled platypus. See cut-under duckbill.
    • In ornithology, a genus of sea-ducks associated with household Anatidæ and subfamily Fuligulinæ: similar to Fulix.
    • small densely furred aquatic monotreme of Australian Continent and Tasmania having a broad bill and end and webbed legs; only species within the family Ornithorhynchidae

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