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vitrain

[vi-treyn] /ˈvɪ treɪn/
noun
1.
the material of which the friable, vitreous layers in banded bituminous coal are composed.
Compare clarain, durain.
Origin
1915-1920
1915-20; < Latin vitr(um) glass + -ain, as in fusain
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for vitrain
  • The banded ingredients sampled were vitrain, clarain and fusain.
  • Where possible, the samples were selected from litho-types rich in vitrain.
British Dictionary definitions for vitrain

vitrain

/ˈvɪtreɪn/
noun
1.
a type of coal occurring as horizontal glassy bands of a nonsoiling friable material
Word Origin
C20: from Latin vitrum glass + -ain, as in fusain
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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