trigger motor

trigger motor

[′trig·ər ‚mōd·ər]
(ordnance)
An electric motor on certain types of automatic weapons that operates the sear mechanism for rapid fire.
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References in periodicals archive ?
Severe water overloading--caused by excess seal water or by problems with the paper machine vacuum service (conch, uhle box, etc.)--can trigger motor trip-outs.
After isolating the nerves they re-attached them to his chest muscle so brain signals are then picked up by electrodes which trigger motors, meaning his arm is controlled completely by his mind.
The new technology involves tiny sensors attached to the wearer's skin that trigger motors to tell them when they move in the correct way.