echid·na /ɪˈkɪdnə/
  針鼴鼠
  E·chid·na n.
  1. Gr. Myth. A monster, half maid and half serpent.
  2. Zoöl. A genus of Monotremata found in Australia, Tasmania, and New Guinea. They are toothless and covered with spines; -- called also porcupine ant-eater, and Australian ant-eater.
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  echidna
       n 1: New Guinea echidnas [syn: spiny anteater, anteater]
       2: burrowing spine-covered monotreme of Australia having a long
          snout and claws for hunting ants and termites [syn: spiny
          anteater, anteater]
       [also: echidnae (pl)]