emu /ˈi(ˌ)mju, mu/
  食火鳥
  E·mu n.  Zoöl. A large Australian bird, of two species (Dromaius Novæ-Hollandiæ and D. irroratus), related to the cassowary and the ostrich. The emu runs swiftly, but is unable to fly. [Written also emeu and emew.]
  Note: ☞ The name is sometimes erroneously applied, by the Brazilians, to the rhea, or South American ostrich.
  Emu wren. See in the Vocabulary.
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  emu
       n 1: any of various systems of units for measuring electricity
            and magnetism [syn: electromagnetic unit]
       2: large Australian flightless bird similar to the ostrich but
          smaller [syn: Dromaius novaehollandiae, Emu
          novaehollandiae]