single-action

[ sing-guh l-ak-shuh n ]
/ ˈsɪŋ gəlˈæk ʃən /

adjective

(of a firearm) requiring the cocking of the hammer before firing each shot: a single-action revolver.

Origin of single-action

First recorded in 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for single-action

single-action

noun

(modifier) (of a firearm) requiring the hammer to be cocked by hand before firing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012