Easily triggered; tending to go off very frequently. / Tending to upset.

Trigger mechanisms, taken collectively.

A species of triggerfish, Pseudobalistes flavimarginatus

A triggerfish of the western Atlantic, found from Nova Scotia to Argentina.

plural of triggerwoman

(US slang) A female gunman.

Resembling or characteristic of a trigger.

plural of yellowmargin triggerfish

plural of reef triggerfish

(rare) Likely to be triggered or set off. / (rare) Likely to trigger or set off something.