either of two large terrestrial cuckoos of the genus Geococcyx of arid regions of the western U.S., Mexico, and Central America, especially G. californianus (greater roadrunner)
Also called chaparral cock.

1855–60, Americanism; road + runner Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
roadrunner (ˈrəʊdˌrʌnə)
Also called: chaparral cock a terrestrial crested bird, Geococcyx californianus, of Central and S North America, having a streaked plumage and long tail: family Cuculidae (cuckoos)

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
Detritivores such as termites eat the roadrunner after it dies.
Bacteria and fungi help decompose the remaining bones of the roadrunner.
These prey have a high percentage of body moisture which satisfies the roadrunner's need for water.
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