Impact Definition

ĭmpăkt
impacted, impacting, impacts
noun
impacts
A striking together; violent contact; collision.
Webster's New World
The force of a collision; shock.
Webster's New World
The effect or impression of one person or thing on another.
Still gauging the impact of automation on the lives of factory workers.
American Heritage
The power of an event, idea, etc. to produce changes, move the feelings, etc.
Webster's New World

(chiefly medicine) A forced impinging.

His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg.
Wiktionary
verb
impacted, impacting, impacts
To hit with force.
Webster's New World
To force tightly together; pack; wedge.
Webster's New World
To affect.
Webster's New World
To strike forcefully.
Meteorites impacting the lunar surface.
American Heritage
To have an effect.
Webster's New World

Other Word Forms of Impact

Noun

Singular:
impact
Plural:
impacts

Origin of Impact

  • From Latin impāctus past participle of impingere to push against impinge

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin impāctus, perfect passive participle of impingō (“dash against, impinge”).

    From Wiktionary

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