Unstable; in a situation that could be worsened by the slightest mistake. / Easily angered; having a short temper.

Alternative spelling of trigger-happy

plural of trigamist

(neuroanatomy) Of, pertaining to or connecting the trigeminal nerve and the cerebral cortex

a finger used in pulling the trigger of a firearm / the forefinger

The trigger finger of a person eager to fire their weapon or likely to do so unexpectedly.

(paper) A paper size, (3.75"-5" x 2.5"-3.125"), one thirty-second of a standard uncut flat sheet. / (printing) A book size, (3.75"-5" x 2.5"-3.125"), corresponding to the paper size.

(anatomy, relational) Of or pertaining to the trigeminal nerve (the fifth cranial nerve).

(neuroanatomy) Ellipsis of trigeminal nerve..

(neuroanatomy) Each of the fifth and largest pair of cranial nerves responsible for sensation and motor function in the face and mouth.