[1] : The Collaborative International Dictionary of English v.0.48

impact \impact"\, v. t. imp.  p. p. impacted; p. pr.  vb.
   n. impacting. l. impactus, p. p. of impingere to push,
   strike against. see impinge.
   1. to drive close; to press firmly together: to wedge into a
      place. --woodward.
      1913 webster

   2. to affect or influence, especially in a significant or
      undesirable manner; as, budget cuts impacted the entire
      research program; the fish populations were adversely
      impacted by pollution.
      pjc

   3. to collide forcefully with; to strike.
      pjc
see also:
impacted impacting impinge 

[2] : The Collaborative International Dictionary of English v.0.48

impact \im"pact\, n.
   1. contact or impression by touch; collision; forcible
      contact; force communicated.
      1913 webster

            the quarrel, by that impact driven.   --southey.
      1913 webster

   2. mech. the single instantaneous stroke of a body in
      motion against another either in motion or at rest.
      1913 webster

[3] : WordNet (r) 2.0

impact
     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,
        encroachment
     4: the violent interaction of individuals or groups entering
        into combat; "the armies met in the shock of battle" syn:
         shock
     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
see also:
wallop impingement encroachment shock affect bear upon 
bear on touch on touch 

[4] : Moby Thesaurus II by Grady Ward, 1.0

196 moby thesaurus words for "impact":
   affect, affective meaning, altitude peak, appulse,
   automatic control, backlash, backwash, bearing, bed, blast-off,
   blow, bounce, brunt, buffet, bulldozing, bulling, bump, bumping,
   burden, burn, burnout, cannon, carambole, carom, ceiling, change,
   clash, clout, colliding, collision, coloring, concussion, confirm,
   connotation, consequence, consequences, contact, crack-up, cram in,
   crash, crashing, crowd in, crump, crunch, deep-dye, define,
   denotation, descent, drift, drive in, effect, embed, encounter,
   end of burning, engraft, engrave, entrench, essence, establish,
   etch, extension, fix, flight, force, force in, found, gist,
   grammatical meaning, ground, hammering, hit, idea, ignition,
   impingement, implant, implication, import, impress, impression,
   imprint, infix, influence, ingrain, inscribe, intension, jam,
   jam in, jar, jolt, jounce, knock in, launch, lexical meaning,
   lift-off, literal meaning, lodge, mark, mauling, meaning, meeting,
   modify, onslaught, overtone, pack, pack in, percussion, pertinence,
   pith, plant, plunge in, point, poke in, pound, pound in,
   practical consequence, press in, print, punch, purport, push in,
   quake, quiver, ram in, ramming, range of meaning, rap, reaction,
   real meaning, recoil, reference, referent, reflex, relation,
   relevance, repercussion, response, results, rock, rocket launching,
   root, run in, scope, seat, semantic cluster, semantic field, sense,
   set, set in, settle, shake, shock, shoot, shot, sideswipe,
   significance, signification, significatum, signifie, slap,
   sledgehammering, smash, smash-up, smashing, span of meaning,
   spirit, squeeze in, stamp, stereotype, strike, striking, stroke,
   structural meaning, stuff in, substance, sum, sum and substance,
   symbolic meaning, tamp in, tenor, thrust, thrust in, thrusting,
   totality of associations, trajectory, transferred meaning, tremble,
   tremor, unadorned meaning, undertone, value, velocity peak, wallop,
   wedge, wedge in, weight, whomp

[5] : Virtual Entity of Relevant Acronyms (Version 1.9, June 2002)

impact
     information market policy actions echo
     
     

[6] : U.S. Gazetteer (1990)

impact, tx town, fips 35816
  location: 32.49875 n, 99.74627 w
  population 1990: 25 13 housing units
  area: 0.2 sq km land, 0.0 sq km water

[7] : U.S. Gazetteer Places (2000)

impact, tx -- u.s. town in texas
   population 2000:    39
   housing units 2000: 16
   land area 2000:     0.086631 sq. miles 0.224374 sq. km
   water area 2000:    0.000000 sq. miles 0.000000 sq. km
   total area 2000:    0.086631 sq. miles 0.224374 sq. km
   fips code:            35816
   located within:       texas tx, fips 48
   location:             32.500573 n, 99.744790 w
   zip codes 1990:    
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    impact, tx
    impact

Impact >> I Words
Impact, definition of term: Impact
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