Brim"stone (?), n. [OE. brimston, bremston, bernston, brenston; cf. Icel. brennistein. See Burn, v. t., and Stone.]
Sulphur; See Sulphur.
© Webster 1913.
Brim"stone, a.
Made of, or pertaining to, brimstone; as, brimstone matches.
From his brimstone bed at break of day
A-walking the devil has gone.
Coleridge.
© Webster 1913.