Definitions for blowback

This page provides all possible meanings and translations of the word blowback

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. blowback, backfire(noun)

    the backward escape of gases and unburned gunpowder after a gun is fired

  2. blowback(noun)

    misinformation resulting from the recirculation into the source country of disinformation previously planted abroad by that country's intelligence service

WiktionaryRate this definition:(0.00 / 0 votes)

  1. blowback(Noun)

    A type of action where the pressure from the fired cartridge blows a sliding mechanism backward to extract the fired cartridge, chamber another cartridge, and cock the hammer.

  2. blowback(Noun)

    An unintended adverse result, especially of a political action.

  3. blowback(Noun)

    The act of shotgunning (inhaling from a pipe etc. and exhaling into another smoker's mouth).

FreebaseRate this definition:(0.00 / 0 votes)

  1. Blowback

    Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gases created by the ignition of the propellant charge. Several types of blowback systems exist within this broad principle of operation, each distinguished by the level of energy derived through the blowback principle and the methods used to control bolt movement. In most actions that use blowback operation, the breech is not locked mechanically at the time of firing: the inertia of the bolt and recoil spring, relative to the weight of the bullet, delays opening of the breech until the bullet has left the barrel. A few locked breech designs use a form of blowback to perform the unlocking function. Other operating principles for self-loading firearms include blow forward, gas operation, recoil operation, Gatling, and chain. The blowback principle may be considered a simplified form of gas operation, since the cartridge case behaves like a piston driven by the powder gases.

Dictionary of Military and Associated TermsRate this definition:(0.00 / 0 votes)

  1. 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.


Find a translation for the blowback definition in other languages:

Select another language:

Discuss these blowback definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"blowback." STANDS4 LLC, 2015. Web. 29 Mar. 2015. <>.

Are we missing a good definition for blowback? Don't keep it to yourself...

The Web's Largest Resource for

Definitions & Translations

A Member Of The STANDS4 Network

Nearby & related entries:

Alternative searches for blowback:

Thanks for your vote! We truly appreciate your support.