Ornithorhynchus anatinus

Definitions of Ornithorhynchus anatinus
  1. noun
    small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae
    synonyms: duck-billed platypus, duckbill, duckbilled platypus, platypus
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    type of:
    egg-laying mammal, monotreme
    the most primitive mammals comprising the only extant members of the subclass Prototheria
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