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peridot

[per-i-doh, -dot] /ˈpɛr ɪˌdoʊ, -ˌdɒt/
noun, Mineralogy.
1.
a green transparent variety of olivine, used as a gem.
Origin of peridot
1300-1350
1300-50; < French péridot; replacing Middle English peritot < Middle French
Related forms
peridotic
[per-i-dot-ik, -doh-tik] /ˌpɛr ɪˈdɒt ɪk, -ˈdoʊ tɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for peridot

peridot

/ˈpɛrɪˌdɒt/
noun
1.
a pale green transparent variety of the olivine chrysolite, used as a gemstone
Word Origin
C14: from Old French peritot, of unknown origin
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 peridot
n.

type of gemstone, mid-14c. (mid-13c. in Anglo-Latin), from Old French peritot (early 13c., Modern French péridot), of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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10
11
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