noun Arabian Mythology.
a bird of enormous size and strength.

1570–80; < Arabic rukhkh, probably < Persian rukh; see rook2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
roc (rɒk)
(in Arabian legend) a bird of enormous size and power
[C16: from Arabic rukhkh, from Persian rukh]

abbreviation for
Royal Observer Corps

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

large, ferocious bird of fable, 1579, from Arabic rukhkh, from Pers. rukh. Mentioned in Marco Polo's account of Madagascar, modern use is mostly from "Arabian Nights."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Abbreviations & Acronyms
  1. Greater Rochester [NY] International Airport

  2. Republic of China (Taiwan)

  3. rest of Canada (other than Quebec)

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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