backdraft

[ bak-draft, -drahft ]
/ ˈbækˌdræft, -ˌdrɑft /

noun

an explosive surge in a fire produced by the sudden mixing of air with other combustible gases.

Origin of backdraft

First recorded in 1815–25; back2 + draft
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019