wildfire

n. uncontrollable blaze; highly flammable material; powerful lightning lacking thunder; phosphorous light which hovers over the ground in marshy areas, ignis fatuus

A wildfire, also known as a wildland fire, forest fire, vegetation fire, grass fire, peat fire ("gambut" in Indonesia), bushfire (in Australasia), or hill fire, is an uncontrolled fire often occurring in wildland areas, but which can also consume houses or agricultural resources. Common causes include lightning, human carelessness, arson, volcano eruption, and pyroclastic cloud from active volcano.  Heat waves, droughts, and cyclical climate changes such as El Niño can also have a dramatic effect on the risk of wildfires.
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Wildfire is a 2006 novel by American author Nelson DeMille. It is the fourth of DeMille's novels to feature Detective John Corey, now working as a contractor for the fictional FBI Anti-Terrorist Task Force in New York.The book follows Corey and his wife Kate Mayfield as they attempt to stop the Custer Hill Club members, especially Bain Madox from nuking American cities in order to force the "wild fire protocol" to be initiated. Throughout the book it is assumed that wildfire was created as the counterpart of Mutual Assured Destruction for Islamic terrorism.
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(n.)
An old name for erysipelas.
  

(n.)
A sort of lightning unaccompanied by thunder.
  

(n.)
A disease of sheep, attended with inflammation of the skin.
  

(n.)
A composition of inflammable materials, which, kindled, is very hard to quench; Greek fire.
  

Noun
1. a raging and rapidly spreading conflagration
(hypernym) conflagration, inferno