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Either of two swift-running, ground-dwelling birds (Geococcyx californianus or G. velox) of North and Central America, having streaked brownish plumage, a brown and black crest, and a long tail. Also called chaparral cock.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Animals) a terrestrial crested bird, Geococcyx californianus, of Central and S North America, having a streaked plumage and long tail: family Cuculidae (cuckoos). Also called: chaparral cock
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈroʊdˌrʌn ər)

either of two large terrestrial cuckoos of the genus Geococcyx of arid regions of the western U.S., Mexico, and Central America, esp. G. californianus.
[1855–60, Amer.]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.roadrunner - speedy largely terrestrial bird found from California and Mexico to Texasroadrunner - speedy largely terrestrial bird found from California and Mexico to Texas
cuckoo - any of numerous European and North American birds having pointed wings and a long tail
genus Geococcyx, Geococcyx - roadrunners
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
More than 90% of the world's supercomputers are now running Torvalds's "hobby system." See the chart above from the Top 500 Supercomputer sites that shows the OSs used by supercomputers.
A pioneer in software technologies for the development, execution, and monetization of modern scalable applications, Massively Parallel Technologies, Inc (MPT) is an emerging technology company creating products that dramatically enhance the performance of compute clusters used in Web 2.0, online gaming, cloud computing, corporate data centers, and supercomputer sites. The company is privately held and is headquartered in Boulder, Colo.
The latest semi-annual ranking of the World's TOP500 Supercomputer Sites was released during the International Supercomputing Conference in Hamburg, Germany.
Big Blue's Roadrunner system at the Department of Energy's Los Alamos National Laboratory has maintained the lead spot in the Top 500 Supercomputer Sites, which ranks machines by raw speed.
and Intel Corp.<p>Announced, the Top 500 Supercomputer Sites list ranks the world's fastest machines twice a year.
Still in our first decade of the 21st century, major supercomputer sites now speak of storage in terms of petabytes, [10.sup.15] bytes, or six orders of magnitude increase in capacity over a gigabyte!
Among academic machines, it's the nation's speediest, says McRobbie, and also has the most impressive storage capacity Overall, it's the 23rd-most-powerful supercomputer on earth, on the "Top 500 Supercomputer Sites" list amid such prestigious computer users as the Oak Ridge, Los Alamos and Lawrence Livermore national laboratories, NASA, the U.S.