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trigger

verb
 
🔊/ˈtrɪɡə(r)/
🔊/ˈtrɪɡər/
Verb Forms
present simple I / you / we / they trigger
🔊/ˈtrɪɡə(r)/
🔊/ˈtrɪɡər/
he / she / it triggers
🔊/ˈtrɪɡəz/
🔊/ˈtrɪɡərz/
past simple triggered
🔊/ˈtrɪɡəd/
🔊/ˈtrɪɡərd/
past participle triggered
🔊/ˈtrɪɡəd/
🔊/ˈtrɪɡərd/
-ing form triggering
🔊/ˈtrɪɡərɪŋ/
🔊/ˈtrɪɡərɪŋ/
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  1.  
    trigger something (off) to make something happen suddenly发动；引起；触发 synonym set off
    • Nuts can trigger off a violent allergic reaction.坚果可以引起严重的过敏反应。🔊🔊
    Extra Examples
    • A wide range of emotionally stressful events may trigger a relapse.多种令人情绪紧张的事情都可能引起旧病复发。
    • An influx of refugees has triggered disturbances.难民的涌入引发了骚乱。
    • Even the smell of oranges can trigger her migraine.甚至橙子的气味也会触发偏头痛。
    • He suffers from a brain disorder that can trigger off convulsive fits.他患了脑疾，可能会引发惊厥。
    Topics Change, cause and effectb2
  2.  
    trigger something to cause a device to start functioning开动；起动 synonym set off
    • to trigger an alarm触发警报器

trigger

noun
 
🔊/ˈtrɪɡə(r)/
🔊/ˈtrɪɡər/
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  1.  
    the part of a gun that you press in order to fire it（枪的）扳机
    • to pull/squeeze the trigger扣扳机
    • He kept his finger on the trigger.他的手指一直勾着扳机。🔊🔊
    Oxford Collocations Dictionaryverb + trigger
    • press
    • pull
    • squeeze
    • …
    trigger + noun
    • finger
    • guard
    • mechanism
    • …
    phrases
    • have your finger on the trigger
    See full entry
  2.  
    something that is the cause of a particular reaction or development, especially a bad one（尤指引发不良反应或发展的）起因，诱因
    • trigger for something The trigger for the strike was the closure of yet another factory.触发这次罢工的是又一家工厂被关闭了。🔊🔊
    • trigger to something Intense sunlight may be a trigger to skin cancer.强烈的阳光可能会引发皮肤癌。
    • trigger to do something a radical plan that would have served as a trigger to create chaos in the country一项激进的计划，可能会引发该国的混乱
    Topics Change, cause and effectc1
    3. Word Originearly 17th cent.: from dialect tricker, from Dutch trekker, from trekken ‘to pull’.