Meaning of TRIGGER in English

TRIGGER

I. ˈtri-gər noun

Etymology: alteration of earlier tricker, from Dutch trekker, from Middle Dutch trecker one that pulls, from trecken to pull — more at trek

Date: 1621

1.

a. : a piece (as a lever) connected with a catch or detent as a means of releasing it ; especially : the part of the action moved by the finger to fire a gun

b. : a similar movable part by which a mechanism is actuated

trigger of a spray gun

2. : something that acts like a mechanical trigger in initiating a process or reaction

• trigger adjective

• trig·gered -gərd adjective

II. verb

( trig·gered ; trig·ger·ing ˈtri-g(ə-)riŋ)

Date: 1916

transitive verb

1.

a. : to release or activate by means of a trigger ; especially : to fire by pulling a mechanical trigger

trigger a rifle

b. : to cause the explosion of

trigger a missile with a proximity fuse

2. : to initiate, actuate, or set off by a trigger

an indiscreet remark that trigger ed a fight

a stimulus that trigger ed a reflex

intransitive verb

: to release a mechanical trigger

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.