trigger2 AC (
also trigger off)
verb [transitive]1. to make something happen very quickly, especially a series of events:
The assassination triggered off a wave of rioting. Certain forms of mental illness can be triggered by food allergies.trigger a memory (=make you suddenly remember something) His action triggered a massive response from the government.2. to make something such as a bomb or electrical system start to operate
Synonym : set off:
The burglars fled after triggering the alarm. [TahlilGaran] Dictionary of Contemporary English ▲