Webster's Revised Unabridged Dictionary · 1913

Brimstone

Brimstone ({not transcribed}) , noun

[Old English brimston, bremston, bernston, brenston; compare Icelandic brennistein. See Burn, transitive verb, and Stone.]

Sulphur; See Sulphur.

Brimstone , adjective

Made of, or pertaining to, brimstone; as, brimstone matches.
From his brimstone bed at break of day A-walking the devil has gone. — Coleridge