Noun: firestone 'fI(-u)r,stown
- A piece of flint that is struck to light a fire
"Early humans used firestone to create sparks for starting fires"
- A sandstone that withstands intense heat; used to line fireplaces and furnaces and kilns
"Firestone bricks lined the industrial kiln"; "The old fireplace was constructed with durable firestone"
Derived forms: firestones
Encyclopedia: Firestone, Dennis