durain


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dur·ain

 (do͝or′ān, dyo͝or′-)
n.
A gray to brownish-black band in bituminous coal, characterized by a granular fracture and a dull luster.

[Latin dūrus, hard; see deru- in Indo-European roots + (fus)ain.]
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References in periodicals archive ?
the villages of El Labu, Tablu, El Hibeel, El Atmour and Umm Serdiba in the locality of Umm Durain and the town of El Buram, were under extensive aerial bombardments," he said in an earlier statement, issued Monday.
Between 18 and 21 October… the villages of El Labu, Tablu, El Hibeel, El Atmour and Umm Serdiba in the locality of Umm Durain and the town of El Buram, were under extensive aerial bombardments," he said in an earlier statement, issued Monday.
Kac G, Durain E, Am rein C, Herisson E, Fiemeyer A, Buu-Hoi A.
Bohme P, Floriot M, Sirveaux MA, Durain D, Ziegler O, Drouin P, et al.