Noun
An event, arrangement, provocation, etc. that leads a certain, generally violent or angered, action to be taken.
Synonyms: trigger, provocation
The unbalanced terms of the treaty was a trigger point for the war.
Me wanting to spend time with other people is a big trigger point for him.
A hyperirritable spot in the skeletal muscle; a point in tender muscle that tends to elicit pain upon pressure or touch.
Source: en.wiktionary.orgThe amygdala in the emotional center sees and hears everything that occurs to us instantaneously and is the trigger point for the fight or flight response. Daniel Goleman