slow motion
US /ˌsloʊ ˈmoʊ.ʃən/
UK /ˌsloʊ ˈmoʊ.ʃən/
1.
the effect of filming or playing back a video or film at a speed slower than that of the actual event, so that the action appears much slower than in real life
:
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The replay showed the goal in slow motion.
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Everything seemed to happen in slow motion during the accident.