trigger a chain reaction

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• Chain reaction — This article is about chain reactions in chemistry and physics. For other uses, see Chain reaction (disambiguation). A chain reaction is a sequence of reactions where a reactive product or by product causes additional reactions to take place. In… …   Wikipedia

• chain reaction — noun a) A nuclear reaction in which particles produced by the fission of one atom trigger fissions of other atoms. The Manhattan Project produced the first recorded controlled chain reaction. b) A series of events, each one causing the next. The… …   Wiktionary

• chain reaction — chain′ reac tion n. 1) phs a nuclear or chemical reaction in which the reaction products in turn trigger additional reactions 2) a series of events in which each event is the result of the one preceding and the cause of the one following •… …   From formal English to slang

• reaction — noun 1 response ADJECTIVE ▪ extreme, strong, violent ▪ favourable/favorable, positive ▪ adverse, hostile, negative …   Collocations dictionary

• trigger — /ˈtrɪgə / (say triguh) noun 1. (in firearms) a small projecting tongue which when pressed by the finger liberates the mechanism and discharges the weapon. 2. a device, as a lever, the pulling or pressing of which releases a detent or spring. 3.… …  

• reaction — re|ac|tion W2S2 [riˈækʃən] n ▬▬▬▬▬▬▬ 1¦(to a situation/event)¦ 2¦(moving quickly)¦ 3¦(to food/drugs)¦ 4¦(science)¦ 5¦(change)¦ 6¦(against change)¦ ▬▬▬▬▬▬▬ 1.) ¦(TO A SITUATION/EVENT)¦ [U and C] something that you feel or do because of something… …   Dictionary of contemporary English

• reaction */*/*/ — UK [rɪˈækʃ(ə)n] / US noun Word forms reaction : singular reaction plural reactions 1) a) [countable] the way that you feel or behave as a result of something that happens My mother s initial reaction was quite unexpected. b) [usually singular] a… …   English dictionary

• reaction*/*/*/ — [riˈækʃ(ə)n] noun 1) [C] the way that you feel or behave as a result of something that happens My mother s reaction was quite unexpected.[/ex] Shock is a natural reaction to such bad news.[/ex] See: knee jerk 2) [C] a bad effect on your body… …   Dictionary for writing and speaking 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;… …   Useful english dictionary

• reaction — n. 1) to cause, trigger a reaction 2) to encounter, meet with a reaction 3) an adverse, negative; favorable, positive; strong; weak reaction 4) an allergic; chain; chemical; delayed; knee jerk (usu. fig.); natural, normal; nuclear; physiological… …   Combinatory dictionary

• trigger — /trig euhr/, n. 1. a small projecting tongue in a firearm that, when pressed by the finger, actuates the mechanism that discharges the weapon. 2. a device, as a lever, the pulling or pressing of which releases a detent or spring. 3. anything, as… …   Universalium