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double-action

American  
[duhb-uhl-ak-shuhn] / ˈdʌb əlˈæk ʃən /

adjective

  1. (of a firearm) requiring only one pull of the trigger to cock and fire it.


Etymology

Origin of double-action

First recorded in 1850–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

If so, he thought, a COVID-19 vaccine might bolster the population of those double-action B cells—and broaden survivors’ immunity.

From Science Magazine

As the two shook hands, an Italian immigrant named Giuseppe Zangara drew a nickel-plated .32 caliber double-action revolver and from 35ft fired off five shots in 15 seconds.

From The Guardian

Overall, this double-action handgun’s length is 7.9 inches with a 4.5-inch cold hammer-forged, stainless-steel threaded barrel and recessed target crown.

From Fox News

He heard four gunshots, but thinks a “double-action trigger” was used because the autopsy showed seven gunshot wounds.

From Time

It is also “double-action only,” which means the trigger must be pulled fully in order to fire.

From Time