impact

Etymology

Definitions

1. 1

   The striking of one body against another

   The striking of one body against another; collision.

2. 2

   The force or energy of a collision of two objects.

   • The hatchet cut the wood on impact.
3. 3

   A forced impinging.

   • His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg.
4. ›+ 5 more definitionsshow fewer

   1. 4

      A significant or strong influence or effect.

      • His friend's opinion had an impact on his decision.
      • Our choice of concrete will have a tremendous impact on the building's mechanical performance.
      • December 7, 1941, November 22, 1963, and September 11, 2001 had an impact on many throughout the world.
   2. 5

      To collide or strike, the act of impinging.

      • When the hammer impacts the nail, it bends.
      • As a microbullet impacts the graphene, the diameter of the cone it creates – determined by later examination of the petals – provides a way to measure how much energy the graphene absorbs before breaking.
   3. 6

      To compress

      To compress; to compact; to press into something or pack together.

      • The footprints of birds do not impact the soil in the way those of dinosaurs do.
   4. 7

      To significantly or strongly influence or affect

      To significantly or strongly influence or affect; to have an impact on.

      • I can make the changes, but it will impact the schedule.
   5. 8

      To stamp or impress onto something.

      • Ideas impacted on the mind.

The neighborhood

• synonympercussion
• neighborimpinge