on/upon impact

Definition of on/upon impact

  1. :  at the time of hitting something The bomb exploded on/upon impact (with the ground).

Word by Word Definitions

  1. :  on

  1. :  on the surface :  on it

    :  thereafter, thereon

  1. :  to fix firmly by or as if by packing or wedging

    :  to press together

    :  to have a direct effect or impact on :  impinge on

  1. :  an impinging or striking especially of one body against another

    :  a forceful contact or onset

    :  the impetus communicated in or as if in such a contact

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