That triggers or initiates.

The initiation of an event or process.

present participle of trigger

plural of triggering

simple past tense and past participle of trigger

Having a trigger that reacts to some specific condition. / (Internet slang) angered; agitated

Third-person singular simple present indicative form of trigger

plural of trigger

(firearms) A finger-operated lever used to fire a gun. / A similar device used to activate any mechanism. / An event that initiates others, or incites a response.

(transitive) To fire a weapon. / (transitive) To initiate something. / (transitive, figuratively) To spark a response, especially a negative emotional response, in (someone).