# vitrain

> English word · Noun

## Definitions
1. A constituent of banded bituminous coal consisting of a horizontal glossy band of friable material.

## Etymology
From Latin vitreus (“vitreous”) + -ain in fusain; compare French -ain (“-ane”). Coined by British birth control campaigner and paleontologist Marie Stopes in 1918.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/vitrain