trigger mechanism

noun

1. a physiological or psychological process caused by a stimulus and resulting in a usually severe reaction.

Example Sentences

The trigger mechanism and metrics for establishing this success are still unclear.

From The Daily Beast

Inside the case was some sort of a trigger mechanism operated by a button on the outside.

From Project Gutenberg

Sliding up and down in the trough was a block, fitted with a trigger mechanism, through which passed the middle of the bowstring.

From Project Gutenberg

The bird is caught when it alights on the trigger mechanism which snaps a noose as the bird perches on it.

From Project Gutenberg

I had pressed down too hard on the trigger mechanism, in the heat of the battle, and this had jammed.

From Project Gutenberg