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Pronunciation: im-pakt


  1. The forcible striking of one body against another.
  2. To press two bodies, parts, or fragments closely together so that the two parts move as a single unit.

[L. impingo, pp. -pactus, to strike at (in + pango), fasten, drive in]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.