what does trigger means
trigger - an act that sets in motion some course of events. initiation, induction. causation, causing - the act of causing something to happen. instigation, fomentation - deliberate and intentional triggering (of trouble or discord) Verb: 1. trigger - put in motion or move to act; trigger a reaction; actuate the circuits activate, actuate, set off, spark, spark off, touch off, trigger off, trip initiate, pioneer - take the lead or initiative in; participate in the development of; This South African surgeon pioneered heart transplants