Wild″fire (?), n. 1. A composition of inflammable materials, which, kindled, is very hard to quench; Greek fire.
Brimstone, pitch, wildfire... burn cruelly, and hard to quench. Bacon.
2. (Med.) (a) An old name for erysipelas. (b) A disease of sheep, attended with inflammation of the skin.
3. A sort of lightning unaccompanied by thunder.