blowback

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blow·back

 (blō′băk′)
n.
1. The backpressure in an internal-combustion engine or a boiler.
2. Powder residue that is released upon automatic ejection of a spent cartridge or shell from a firearm.
3. Negative repercussions affecting a country whose government has undertaken a usually clandestine intelligence operation in another country.

blowback

(ˈbləʊˌbæk)
n
1. (General Engineering) the escape to the rear of gases formed during the firing of a weapon or in a boiler, internal-combustion engine, etc
2. (Military) the action of a light automatic weapon in which the expanding gases of the propellant force back the bolt, thus reloading the weapon

blowback

1. Escape, to the rear and under pressure, of gases formed during the firing of the weapon. Blowback may be caused by a defective breech mechanism, a ruptured cartridge case, or a faulty primer.
2. Type of weapon operation in which the force of expanding gases acting to the rear against the face of the bolt furnishes all the energy required to initiate the complete cycle of operation. A weapon which employs this method of operation is characterized by the absence of any breech-lock or bolt-lock mechanism.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.blowback - the backward escape of gases and unburned gunpowder after a gun is fired
blowup, detonation, explosion - a violent release of energy caused by a chemical or nuclear reaction
backblast, back-blast - backfire from a recoilless weapon
2.blowback - misinformation resulting from the recirculation into the source country of disinformation previously planted abroad by that country's intelligence service
misinformation - information that is incorrect
References in periodicals archive ?
On the negative side, with center-fire blowbacks the slide is moving fast when the frame stops its full rearward movement, accentuating recoil.
stick-pole from perpetual prop blasts, turbo blowbacks, and the wind
Islamophobia is now in full swing -- thanks largely to the Syria war spillover and blowbacks.