a large, flightless, ratite bird, Emu (Dromaius ) novaehollandiae, of Australia, resembling the ostrich but smaller and having a feathered head and neck and rudimentary wings.

1605–15; earlier emeu (in earliest E source emia, eme), ultimately < Portuguese ema, attested in 1541 as a name for the cassowary (further origin obscure); the replacement of -a by -eu, etc., is unexplained

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World English Dictionary
emu (ˈiːmjuː)
See also ratite a large Australian flightless bird, Dromaius novaehollandiae, similar to the ostrich but with three-toed feet and grey or brown plumage: order Casuariiformes
[C17: changed from Portuguese ema ostrich, from Arabic Na-`amah ostrich]

abbreviation for
1.  European Monetary Union
2.  Economic and Monetary Union
3.  See e.m.u.

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

"large Australian bird," 1613, probably from Port. ema "crane, ostrich," of unknown origin, perhaps from Moluccan eme.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
Abbreviation of electromagnetic unit
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Abbreviations & Acronyms
electromagnetic unit
  1. Eastern Mennonite University

  2. Eastern Michigan University

  3. European Monetary Union

  4. extravehicular mobility unit

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences for emus
Emus have been shown to travel long distances to reach abundant feeding areas.
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