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[dih-plod-uh-kuh s] /dɪˈplɒd ə kəs/
noun, plural diplodocuses.
a huge herbivorous dinosaur of the genus Diplodocus, from the Late Jurassic Epoch of western North America, growing to a length of about 87 feet (26.5 meters).
Origin of diplodocus
< New Latin (1878), equivalent to diplo- diplo- + Greek dokós beam, bar, shaft Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for diplodocus
Historical Examples
  • The diplodocus nearly equalled the Brontosaurus in bulk and exceeded it in length.


    William Diller Matthew
  • But the diplodocus is neither the largest nor heaviest of its family.

    The Story of Evolution Joseph McCabe
  • We could just detect a Zeppelin or a diplodocus as a moving speck against the surface.

  • Towering thrice as high as the largest African elephant, the diplodocus was now but seventy-five yards away.

  • The diplodocus skull is widely different from the other two in size and proportions and in the characters of teeth.


    William Diller Matthew
  • The thigh-bone is enormous, measuring five feet eight inches in length, and is relatively of greater mass than that of diplodocus.


    William Diller Matthew
  • The neck is relatively shorter, however, measuring eighteen feet, while in diplodocus it measures over twenty-one feet.


    William Diller Matthew
  • The diplodocus, meanwhile, had been looking down upon the scene with half-bewildered apprehension.

    In the Morning of Time Charles G. D. Roberts
  • The tricky Jarmuthians, however, mount their men on a diplodocus, a huge dinosaur some eighty-seven feet in length.

  • "Dip," he called the enormous skeleton, though its full name was diplodocus.

    Jerry's Charge Account Hazel Hutchins Wilson
British Dictionary definitions for diplodocus


/dɪˈplɒdəkəs; ˌdɪpləʊˈdəʊkəs/
noun (pl) -cuses
any herbivorous quadrupedal late Jurassic dinosaur of the genus Diplodocus, characterized by a very long neck and tail and a total body length of 27 metres: suborder Sauropoda (sauropods)
Word Origin
C19: from New Latin, from diplo- + Greek dokos beam
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for diplodocus

1884, coined in Modern Latin in 1878 by U.S. paleontologist Othniel Charles Marsh (1831-1899) from Greek diploos "double" (see diploid) + dokos "a beam." So called for the peculiar structure of the tail bones.

Online Etymology Dictionary, © 2010 Douglas Harper
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diplodocus in Science
A very large herbivorous dinosaur of the genus Diplodocus of the late Jurassic Period. Diplodocus had a long, slender neck and tail and a small head with peglike teeth, and could grow to nearly 27 m (90 ft) in length. Fossilized skin impressions show that it probably had dermal spines along its back. Diplodocus is one of the longest known sauropod dinosaurs.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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