The Collaborative International Dictionary
Back-firing
Backfire \Back"fire`\ Back-fire \Back"-fire`\, v. i.
(Engin.) To have or experience a back fire or back fires; -- said of an internal-combustion engine.
Of a Bunsen or similar air-fed burner, to light so that the flame proceeds from the internal gas jet instead of from the external jet of mixed gas and air. -- Back"-fir`ing, n.