trigger

trig|ger1 [ `trıgər ] or ,trigger `off verb transitive **

1. ) to make something happen:

Further violence was triggered by news of his death.

a ) to cause someone to have particular feelings or memories:

You find that strangely familiar smells trigger memories of childhood.

b ) to cause someone to do or say something:

trigger a response/reaction: The report has triggered a fierce response from the governor.

2. ) to make a machine or piece of equipment start to work:

A sensor had triggered the security camera.

trigger

trig|ger 2 [ `trıgər ] noun count *

1. ) the part of a gun that you move with your finger to make the gun fire:

pull/squeeze the trigger: She lifts her gun and pulls the trigger.

2. ) something that produces an immediate result:

trigger for: It was the trigger for a whole new investigation.