backfire

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backfire

1. in an internal-combustion engine
a. an explosion of unburnt gases in the exhaust system
b. a premature explosion in a cylinder or inlet manifold
2. a controlled fire started to create a barren area that will halt an advancing forest or prairie fire

backfire

[′bak‚fīr]
(civil engineering)
A fire that is started in order to burn against and cut off a spreading fire.
(electronics)
(engineering)
Momentary backward burning of flame into the tip of a torch. Also known as flashback.
(mechanical engineering)
In an internal combustion engine, an improperly timed explosion of the fuel mixture in a cylinder, especially one occurring during the period that the exhaust or intake valve is open and resulting in a loud detonation.
(ordnance)
Rearward escapement of gases or cartridge fragments upon firing a gun.
References in periodicals archive ?
7 kilometers inside Japanese airspace, 5,800 meters over the island, the officials said, noting it was the first intrusion by Backfire planes into Japanese airspace.
Firefighters began lighting backfires Thursday night in Cattle Canyon, two miles west of Mount Baldy Village, and on Friday lit a number of backfires east of Mount Baldy Road.
Backfires also have been set to counter the fire's progress.
Ground crews continued an effort they began Friday to set brush-clearing backfires around a 3,525-acre wildfire in the San Gabriel Mountains and starve it of fuel.
Firefighters were setting backfires to prevent the blazed from spreading further, he said.
Forest Service firefighter, Abell was sent to light backfires to stop the blaze, which was engulfing both sides of the Golden State Freeway, a dangerous job when winds are erratic.