释义 |
trig·ger I. \ˈtrigə(r)\ noun (-s) Etymology: trig (III) + -er 1. chiefly dialect : a catch or block to hold the wheel of a carriage on a declivity 2. : a block used in shipbuilding to hold a boat on the ways — compare trigger II 1b II. noun (-s) Etymology: alteration (probably influenced by trigger) (I) of earlier tricker, from Dutch trekker, from Middle Dutch trecker something that pulls, from trecken to pull, haul — more at trek 1. : a piece (as a lever) connected with a catch or detent as a means of releasing it: as a. (1) : the part of the action of a firearm moved by the finger to release the hammer or firing pin in firing (2) : a device that fires an explosive < using an A-bomb as trigger for an H-bomb > b. : a lever pivoted on the ground ways with the upper end forced against the sliding ways by a hydraulic ram against the lower end in such a manner that the releasing of the trigger allows a ship to be launched by sliding down the ground ways 2. : something that acts like or is felt to resemble a mechanical trigger especially in being a sensitive means of initiating a process or reaction that produces a relatively large effect; especially : something (as an external stimulus) that initiates a physiological or pathological process < the odor of food may be a trigger for salivation > 3. [by shortening] : triggerfish III. adjective 1. : of, relating to, or associated with a trigger < trigger covers > 2. : functioning as or in a manner analogous to a trigger — see trigger mechanism IV. verb (-ed/-ing/-s) transitive verb 1. : to release by pulling a mechanical trigger < trigger a rifle > broadly : to cause the explosion of < trigger a missile with a proximity fuse > 2. : to initiate, actuate, or set off especially by means of a comparatively weak impulse < a single neutron may trigger an extensive chain reaction > < an indiscreet remark that triggered off a long and costly strike > < the complex mechanism that triggers blood clotting > intransitive verb : to release a mechanical trigger |