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-saurus

See more synonyms for -saurus on Thesaurus.com
  1. Latinized variant of -saur: brontosaurus.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for -saurus

element used in forming dinosaur names, from Latinized comb. form of Greek sauros "lizard," of unknown origin; possibly related to saulos "twisting, wavering."

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Online Etymology Dictionary, © 2010 Douglas Harper