Im·pact v. t. [imp. & p. p. Impacted; p. pr. & vb. n. Impacting.]
1. To drive close; to press firmly together: to wedge into a place.
1. Contact or impression by touch; collision; forcible contact; force communicated.
The quarrel, by that impact driven. --Southey.
2. Mech. The single instantaneous stroke of a body in motion against another either in motion or at rest.
n 1: the striking of one body against another
2: a forceful consequence; a strong effect; "the book had an
important impact on my thinking"; "the book packs a
wallop" [syn: wallop]
3: influencing strongly; "they resented the impingement of
American values on European culture" [syn: impingement,
4: the violent interaction of individuals or groups entering
into combat; "the armies met in the shock of battle" [syn:
v 1: press or wedge together; pack together
2: have an effect upon; "Will the new rules affect me?" [syn: affect,
bear upon, bear on, touch on, touch]