• synonyms


  1. a dinosaur of the genus Brachiosaurus, up to 30 metres long: the largest land animal ever knownSee also sauropod
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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

Examples from the Web for brachiosaurus

Historical Examples of brachiosaurus

  • The femur of the Brachiosaurus exceeded six feet; this must have been the greatest of them all.

    The Book of the National Parks

    Robert Sterling Yard

Word Origin and History for brachiosaurus


1903, Modern Latin, from Greek brakhion "arm" (see brachio-) + -saurus. The forelegs are notably longer than the hind legs.

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Online Etymology Dictionary, © 2010 Douglas Harper

brachiosaurus in Science


  1. A very large sauropod dinosaur of the genus Brachiosaurus of the Jurassic and Cretaceous Periods. It had forelegs that were longer than its hind legs, and nostrils on top of its head.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.