imperfect & past participle Impacted; present participle & verbal noun Impacting.; (Latin) impactus, past participle of impingere to push, strike against. See Impinge.
To drive close; to press firmly together: to wedge into a place. Woodward.
1. Contact or impression by touch; collision; forcible contact; force communicated. The quarrel, by that impact driven. Southey.2. (Mechanic) The single instantaneous stroke of a body in motion against another either in motion or at rest.
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From Latin impāctus, perfect passive participle of impingō (“dash against, impinge”).
impact (plural impacts) The striking of one body against another; collision. The force or energy of a collision of two objects. The hatchet cut the wood on impact. (chiefly medicine) A forced impinging. His spine had an impingement; L4 and L5 made impact, which caused numbness in his leg. A significant or strong influence; an 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.
impact (third-person singular simple present impacts, present participle impacting, simple past and past participle impacted) (transitive) 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. (transitive, proscribed) To influence; to affect; to have an impact on. I can make the changes, but it will impact the schedule. (transitive) To collide or strike. When the hammer impacts the nail, it bends.
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