firestone

noun

fire·​stone ˈfī(-ə)r-ˌstōn 

1

: pyrite formerly used for striking fire

also : flint

2

: a stone that will endure high heat

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Biographical Definition

Firestone

biographical name

Fire·​stone ˈfī(-ə)r-ˌstōn 

Harvey Samuel 1868–1938 American industrialist