hair trigger(redirected from hair triggers)
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A gun trigger adjusted to respond to a very slight pressure.
1. (Firearms, Gunnery, Ordnance & Artillery) a trigger of a firearm that responds to very slight pressure
a. any mechanism, reaction, etc, set in operation by slight provocation
b. (as modifier): a hair-trigger temper.
a trigger that allows the firing mechanism of a firearm to be operated by very slight pressure.
1. easily activated or set off; put into operation by the slightest impulse.
2. reacting immediately to the slightest provocation: a hair-trigger temper.