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See more synonyms for -saur on Thesaurus.com
  1. a combining form used in the names of extinct reptiles, especially archosaurs, usually Anglicized forms of Latin taxonomic names: dinosaur; pterosaur.
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Origin of -saur

From the Greek word saûros lizard
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for -saur



n combining form
  1. lizarddinosaur
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Word Origin

from New Latin saurus
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