Meaning of TRIGGER in English

TRIGGER

n. & v.

--n.

1. a movable device for releasing a spring or catch and so setting off a mechanism (esp. that of a gun).

2 an event, occurrence, etc., that sets off a chain reaction.

--v.tr.

1. (often foll. by off) set (an action or process) in motion; initiate, precipitate.

2 fire (a gun) by the use of a trigger.

Phrases and idioms:

quick on the trigger quick to respond. trigger fish any usu. tropical marine fish of the family Balistidae with a first dorsal fin-spine which can be depressed by pressing on the second. trigger-happy apt to shoot without or with slight provocation.

Derivatives:

triggered adj.

Etymology: 17th-c. tricker f. Du. trekker f. trekken pull: cf. TREK

Oxford English vocab.      Оксфордский английский словарь.