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durain

[ door-eyn, dyoor- ]
/ ˈdʊər eɪn, ˈdyʊər- /
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noun Mineralogy.
the coal forming the dull layers in banded bituminous coal.
QUIZ
QUIZ YOURSELF ON "IS" VS. "ARE"
"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."
Question 1 of 7
IS and ARE are both forms of which verb?
Compare clarain, vitrain.

Origin of durain

1915–20; <Latin dūr(us) hard + -ain, from fusain, by analysis as a suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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