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a combining form used in the names of extinct reptiles, especially archosaurs, usually Anglicized forms of Latin taxonomic names:
dinosaur; pterosaur.
Origin of -saur
From the Greek word saûros lizard Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for -saur


combining form
lizard: dinosaur
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
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