D defs.my
Entry 2 senses Webster, 1913

Echidna

/(ē̇*kĭd"nȧ)/ · E·chid·na · IPA /əˈkɪdnə/
01 n. A monster, half maid and half serpent.
  1. 1.
    A monster, half maid and half serpent.(Gr. Myth.)
  2. 2.
    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.(Zoöl.) Also: porcupine ant-eater, Australian ant-eater