vitrain

== English == === Etymology === From Latin vitreus (“vitreous”) + -ain in fusain; compare French -ain (“-ane”). Coined by British birth control campaigner and paleontologist Marie Stopes in 1918. === Noun === vitrain (countable and uncountable, plural vitrains) A constituent of banded bituminous coal consisting of a horizontal glossy band of friable material. ==== Coordinate terms ==== fusain === References === === Further reading === vitrain on Wikipedia.Wikipedia === Anagrams === antivir