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单词 impulse
释义

impulse

noun
/ˈɪmpʌls/
/ˈɪmpʌls/
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  1. [countable, usually singular, uncountable] impulse (to do something) a sudden strong wish or need to do something, without stopping to think about the results
    • He had a sudden impulse to stand up and sing.
    • I resisted the impulse to laugh.
    • Her first impulse was to run away.
    • on (an) impulse The door was open and on (an) impulse she went inside.
    • He tends to act on impulse.
    Extra Examples
    • Acting on impulse, he picked up the keys and slipped them into his pocket.
    • She gave in to an impulse and took the money.
    • We are all subject to aggressive impulses.
    • He fought down an impulse to scream.
    • She felt a sudden impulse to look to her left.
    • On an impulse, I went in and bought a box of chocolates.
    • Some people will buy a pet on impulse without any idea of what is involved.
    • Supermarkets sell candy as impulse items at the checkout counter.
    • The little black designer dress had been an impulse buy.
    Oxford Collocations Dictionaryadjective
    • strong
    • irresistible
    • first
    verb + impulse
    • feel
    • have
    • be subject to
    impulse + noun
    • buy
    • purchase
    • item
    preposition
    • on (an) impulse
    • impulse towards/​toward
    See full entry
  2. [countable] (specialist) a force or movement of energy that causes something else to react
    • nerve/electrical impulses
    • The impulse is conducted along the length of the wire.
    Extra Examples
    • Radio waves are converted into electrical impulses.
    • Nerve impulses are transmitted to the brain.
    Oxford Collocations Dictionaryadjective
    • electrical
    • nerve
    • neural
    verb + impulse
    • generate
    • send
    • transmit
    See full entry
  3. [countable, usually singular, uncountable] (formal) something that causes somebody/something to do something or to develop and make progress
    • to give an impulse to the struggling car industry
    • He was motivated by the impulse for social reform.
    Extra Examples
    • the political impulses towards joining a trade union
    • the impulse that prompted economic change
    Oxford Collocations Dictionaryadjective
    • democratic
    • political
    • religious
    impulse + verb
    • lead (somebody/​something) to something
    • prompt somebody/​something (to do something)
    preposition
    • impulse behind
    • impulse for
    • impulse towards/​toward
    See full entry
  4. Word Originearly 17th cent. (as a verb in the sense ‘give an impulse to’): the verb from Latin impuls- ‘driven on’, the noun from impulsus ‘impulsion’, both from the verb impellere, from in- ‘towards’ + pellere ‘to drive’.
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更新时间:2025/6/3 2:17:24