vitrain

[ vi-treyn ]

noun

1. the material of which the friable, vitreous layers in banded bituminous coal are composed.

vitrain

/ ˈvɪtreɪn /

noun

1. a type of coal occurring as horizontal glassy bands of a nonsoiling friable material

Word History and Origins

Origin of vitrain¹

1915–20; < Latin vitr ( um ) glass + -ain, as in fusain

Word History and Origins

Origin of vitrain¹

C20: from Latin vitrum glass + -ain, as in fusain