1. A raging, rapidly spreading fire.
2. something that acts very quickly and intensely: a land swept by the wildfire of revolution.
3. lightning occurring without audible thunder.
4. A luminosity that appears over swamps or marshes at night; ignis fatuus.
5. A highly flammable material, such as greek fire, once used in warfare.
6. like wildfire rapidly and intensely: the disease spread like wildfire.

1. A rapidly spreading fire, especially one occurring in a wildland area.
2. greek fire, byzantine fire.
3. A spreading disease of the skin, particularly erysipelas.
4. something that acts quickly and uncontrollably.

1. A composition of inflammable materials, which, kindled, is very hard to quench; greek fire.
2.
3. an old name for erysipelas.
4. A disease of sheep, attended with inflammation of the skin.
5. A sort of lightning unaccompanied by thunder.

1. A composition of inflammable materials readily catching fire and hard to be extinguished; greek fire: often used figuratively.
2. sheet-lightning; a kind of lightning unaccompanied by thunder.
3. the blue flames of alcohol burnt in some dishes when brought on table, as with plum-pudding.
4. in coal-mining, the name formerly sometimes given by miners to fire-damp.
5. erysipelas; also, lichen circumseriptus, an eruptive disease, consisting of clusters or patches of papulæ.
6. A disease of sheep, attended with inflammation of the skin.

1. a raging and rapidly spreading conflagration