Definition of impact noun from the Oxford Advanced Learner's Dictionary

        

    impact

     noun
    noun
    BrE BrE//ˈɪmpækt//
     
    ; NAmE NAmE//ˈɪmpækt//
     
    [countable, usually singular, uncountable]
     
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  1. 1  impact (of something) (on somebody/something) the powerful effect that something has on somebody/something the environmental impact of tourism The report assesses the impact of AIDS on the gay community. Her speech made a profound impact on everyone. Businesses are beginning to feel the full impact of the recession. social support to cushion the impact of unemployment
  2. 2  the act of one object hitting another; the force with which this happens craters made by meteorite impacts The impact of the blow knocked Jack off balance. The bomb explodes on impact (= when it hits something). The car is fitted with side impact bars (= to protect it from a blow from the side).
  3. Word Origin early 17th cent. (as a verb in the sense ‘press closely, fix firmly’): from Latin impact- ‘driven in’, from the verb impingere ‘drive something in or at’, from in- ‘into’ + pangere ‘fix, drive’.Extra examples A well-designed sports shoe should absorb the impact on the 28 bones in each foot. Agriculture made a direct physical impact on the landscape. Air bags are designed to soften the impact for crash victims. Architecturally, these churches reflected the impact of the Renaissance. Impact occurred seconds after the pilot radioed for help. It is difficult to judge the likely impact of the changes on employment patterns. It is important to appreciate the wider impact and implications of this proposal. Listening to the speech through an interpreter lessened its impact somewhat. Manufacturing fell sharply under the impact of the recession. Small meteorites have left impact craters all over the planet’s surface. The crew of six may have survived the initial impact, but the whole plane went up in flames seconds later. The environmental impact of power generation is being assessed. The film lacks the visceral impact of her previous work. The front coach of the train took the full impact of the crash. The front of the car had crumpled on impact. The impact knocked him off balance. The industrial north of the country felt the full impact of the recession. The initial impact of the reforms will be felt most keenly in primary schools. The personal impact of party leaders has been very important. The severest human impact on the dolphins has been the loss of habitat. This section explores how mothers resist the impact of poverty on the health of their children. Variations in the interest rate will have an impact on the whole housing market. We are trying to minimize the impact of price rises on our customers. We investigated the impact of new technologies on teaching methods. We’ll show you how to dress for maximum impact at the all-important audition. When peace returned, the hard-line message lost much of its impact. You certainly made a big impact on Carter. a high-impact message aimed at changing high risk behaviour among drug-users a high-impact message aimed at changing people’s attitudes an attempt to reduce the visual impact of wind farms on the landscape considering the cumulative impact of a series of damaging events the consequences of an asteroid impact the uneven impact of the debt crisis on developing countries to highlight the impact of technology on working practices The bomb explodes on impact. The car is fitted with side impact bars. The report assesses the impact of the tax changes on the economy. craters made by meterorite impacts
See the Oxford Advanced American Dictionary entry: impact

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