n
An explosion produced either by a running internal combustion engine that occurs in the air intake or exhaust system rather than inside the combustion chamber or unburned fuel or hydrocarbons ignited somewhere in the exhaust system.
n
A dangerous blast of hot gas behind a rocket or missile when it is fired.
n
(American spelling, firefighting) Sudden, dangerous recombustion that occurs when there is a rapid reintroduction of oxygen to an enclosed space containing a fire.
n
(firefighting, chiefly British spelling) Alternative spelling of backdraft [(American spelling, firefighting) Sudden, dangerous recombustion that occurs when there is a rapid reintroduction of oxygen to an enclosed space containing a fire.]
n
A premature explosion in the cylinder of a gas or oil engine during the exhaust or the compression stroke, tending to drive the piston in the wrong direction.
n
The hazardous situation where the flame propagates backward down the hose of an oxyfuel welding and cutting system.
n
The jarring or reflex motion caused in badly fitting machinery by irregularities in velocity or a reverse of motion.
n
The movement of smoke or a hot gas against the direction of the ventilation flow.
n
A reverse flow, either of a fluid or of an anchor chain.
n
The similar flow of air from an aircraft engine.
n
(US, dialect, coal mining) A lever for operating the throttle valve of a winding engine.
n
(automotive) In an internal combustion engine, any burnt or unburnt matter escaping from the cylinder, past the (worn) rings on the piston, and into the crankcase.
n
(rail transport) On a steam locomotive, the reversal of exhaust gases when the regulator is closed without using the blower.
n
Alternative spelling of blow-by [(automotive) In an internal combustion engine, any burnt or unburnt matter escaping from the cylinder, past the (worn) rings on the piston, and into the crankcase.]
n
(chemical engineering) The removal of liquid and solid hydrocarbons from a refinery vessel by the use of pressure.
n
Temporary closing of a fire station, usually due to budget restrictions.
n
(chemistry, military) Accidental detonation of explosives, especially as the result of excessive heat.
v
(rare) To carry out a simple task in an overcomplicated manner.
n
(mechanics, nonstandard) The choke of a motor vehicle.
n
A burst of flame emitted from a cannon, furnace, etc. in an abnormal direction.
n
The condition of the flame propagating down the hose of an oxy-fuel welding system.
n
The movement of the electron beam back to its initial position between scan lines in a cathode-ray tube display.
n
(by extension) The act of ingesting something into a jet engine.
n
(oil industry) A dangerous buildup of gas pressure at the wellhead.
n
A kind of booster, in a power station, used to give an additional charge to a battery cell operating with reduced capacity by "milking" the other, healthy cells.
n
(firefighting) The process after the fire appears extinguished in which the firefighters search the structure for signs of hot spots that may cause the structure to reignite. Often this includes the process of salvage under the blanket term, salvage and overhaul.
n
(US, slang) pump attendant
n
(automotive) The process of modifying the bore of an engine.
n
An escapement in which, after each beat, the scape-wheel recoils slightly.
n
An explosive device placed at the side of a road and detonated when the target passes.
n
A managed reduction of output in a power plant.
v
(transitive) To increase the power of (an internal combustion engine, either Otto or Diesel cycle) by compressing the inlet air with power extracted from the exhaust air (through using a turbocharger).
n
(automotive) Drag on the crankshaft caused by oil splashing out of the sump when rotating at high speeds.
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