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English definition of “shock wave”

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shock wave

noun [C] uk   us  
a sudden wave of increased pressure or temperature, caused by an explosion, an earthquake, or an object moving faster than the speed of sound a very strong reaction that spreads through a group of people when something surprising or bad happens: The assassination of the president sent shock waves across the world.
(Definition of shock wave from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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