echidna

Definitions of echidna
  1. noun
    a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to Australia
    synonyms: anteater, spiny anteater
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    type of:
    egg-laying mammal, monotreme
    the most primitive mammals comprising the only extant members of the subclass Prototheria
  2. noun
    a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to New Guinea
    synonyms: anteater, spiny anteater
    see moresee less
    type of:
    egg-laying mammal, monotreme
    the most primitive mammals comprising the only extant members of the subclass Prototheria
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