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2017 Word of the Year

hypersthene

[hahy-pers-theen] /ˈhaɪ pərsˌθin/
noun, Mineralogy.
1.
a dark iron magnesium silicate, an orthorhombic pyroxene containing more than 14 percent ferrous oxide.
Compare bronzite, enstatite.
Origin of hypersthene
1800-1810
1800-10; hyper- + Greek sthénos strength, might; replacing hyperstene < French hyperstène
Related forms
hypersthenic
[hahy-pers-then-ik] /ˌhaɪ pərsˈθɛn ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for hypersthene

hypersthene

/ˈhaɪpəˌsθiːn/
noun
1.
a green, brown, or black pyroxene mineral consisting of magnesium iron silicate in orthorhombic crystalline form. Formula: (Mg,Fe)2Si2O6
Derived Forms
hypersthenic (ˌhaɪpəˈsθɛnɪk) adjective
Word Origin
C19: from hyper- + Greek sthenos strength
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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