Princeton's WordNet(4.13 / 15 votes)Rate this definition:

1. impact(noun)

   the striking of one body against another

2. impact, wallop(noun)

   a forceful consequence; a strong effect

   "the book had an important impact on my thinking"; "the book packs a wallop"

3. impingement, encroachment, impact(noun)

   influencing strongly

   "they resented the impingement of American values on European culture"

4. shock, impact(verb)

   the violent interaction of individuals or groups entering into combat

   "the armies met in the shock of battle"

5. impact(verb)

   press or wedge together; pack together

6. affect, impact, bear upon, bear on, touch on, touch(verb)

   have an effect upon

   "Will the new rules affect me?"

GCIDE(3.71 / 7 votes)Rate this definition:

1. Impact(v. t.)

   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.

2. Impact(v. t.)

   To collide forcefully with; to strike.

Origin: [L. impactus, p. p. of impingere to push, strike against. See Impinge.]

Wiktionary(3.75 / 4 votes)Rate this definition:

1. impact(Noun)

   The force or energy of a collision of two objects.

   The hatchet cut the wood on impact.

2. impact(Noun)

   A forced impinging.

   His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg.

3. impact(Noun)

   A significant or strong influence; an effect.

4. impact(Verb)

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

   If fecal incontinence is caused by impacted stool in the rectum, the impaction must be removed.

5. impact(Verb)

   To influence; to affect; to have an impact on.

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

6. impact(Verb)

   To collide or strike.

   When the hammer impacts the nail, it bends.

Origin: From impactus, perfect passive participle of impingo.

Webster Dictionary(0.00 / 0 votes)Rate this definition:

1. Impact(verb)

   to drive close; to press firmly together: to wedge into a place

2. Impact(noun)

   contact or impression by touch; collision; forcible contact; force communicated

3. Impact(noun)

   the single instantaneous stroke of a body in motion against another either in motion or at rest

Origin: [L. impactus, p. p. of impingere to push, strike against. See Impinge.]

Freebase(4.00 / 1 vote)Rate this definition:

1. IMPACT

   IMPACT is a successful merger of many different science communities that need similar instrumentation and resources. IMPACT is a merger of IMPF and ICAPS, originally conceived as two separate experimental facilities, both with their own development history. In May 2002, the dedicated scientific advisory boards for the IMPF and ICPAS recommended the combination of the two experiments into one ESA research laboratory. Both projects share hardware, space station accommodation and operations, and data processing and downloading functions in common. By consolidating these systems into a single laboratory significant reductions have been made to the overall project cost, by eliminating the duplication of expensive development, manufacturing, and qualification tasks.

Chambers 20th Century Dictionary(5.00 / 1 vote)Rate this definition:

1. Impact

   im-pakt′, v.t. to press firmly together: to drive close.—n. Im′pact, a striking against: collision: the blow of a body in motion impinging on another body: the impulse resulting from collision.—Impacted fracture (surg.), when one part of the bone is forcibly driven into the other. [O. Fr. impacter—L. impactus, pa.p. of impingēre. See Impinge.]

Suggested Resources(0.00 / 0 votes)Rate this definition:

1. impact

   Song lyrics by impact -- Explore a large variety of song lyrics performed by impact on the Lyrics.com website.

British National Corpus

1. Spoken Corpus Frequency

   Rank popularity for the word 'impact' in Spoken Corpus Frequency: #1394

2. Written Corpus Frequency

   Rank popularity for the word 'impact' in Written Corpus Frequency: #1752

3. Nouns Frequency

   Rank popularity for the word 'impact' in Nouns Frequency: #611

Numerology

1. Chaldean Numerology

   The numerical value of impact in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of impact in Pythagorean Numerology is: 8

Sample Sentences & Example Usage

1. Victor Kwong:

   The impact is huge.

2. Steven Murphy:

   The impact is significant.

3. Safra Catz:

   It had a very negative impact.

4. Karsten Zang:

   We don't see a huge impact yet.

5. Chief Cabinet Secretary Yoshihide Suga:

   This will have absolutely no impact.

Images & Illustrations of impact