Wildfire Wild"fire, n. 1. A composition of inflammable materials, which, kindled, is very hard to quench; Greek fire. [1913 Webster]

Brimstone, pitch, wildfire . . . burn cruelly, and hard to quench. --Bacon. [1913 Webster]

2. (Med.) (a) An old name for erysipelas. (b) A disease of sheep, attended with inflammation of the skin. [1913 Webster]

3. A sort of lightning unaccompanied by thunder. [R.] [1913 Webster]

The Collaborative International Dictionary of English. 2000.