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impacted

[im-pak-tid] /ɪmˈpæk tɪd/
adjective
1.
tightly or immovably wedged in.
2.
Dentistry. noting a tooth so confined in its socket as to be incapable of normal eruption.
3.
driven together; tightly packed.
4.
densely populated or crowded; overcrowded:
an impacted school district.
Origin
1675-1685
1675-85; obsolete impact adj. (< Latin impāctus past participle of impingere to fasten, cause to collide, strike, equivalent to im- im-1 + pag-, variant stem of pangere to drive in, plant firmly + -tus past participle suffix) + -ed2; see impinge
Related forms
nonimpacted, adjective
unimpacted, adjective

impact

[n. im-pakt; v. im-pakt] /n. ˈɪm pækt; v. ɪmˈpækt/
noun
1.
the striking of one thing against another; forceful contact; collision:
The impact of the colliding cars broke the windshield.
2.
an impinging:
the impact of light on the eye.
3.
influence; effect:
the impact of Einstein on modern physics.
4.
an impacting; forcible impinging:
the tremendous impact of the shot.
5.
the force exerted by a new idea, concept, technology, or ideology:
the impact of the industrial revolution.
verb (used with object)
6.
to drive or press closely or firmly into something; pack in.
7.
to fill up; congest; throng:
A vast crowd impacted St. Peter's Square.
8.
to collide with; strike forcefully:
a rocket designed to impact the planet Mars.
9.
to have an impact or effect on; influence; alter:
The decision may impact your whole career. The auto industry will be impacted by the new labor agreements.
verb (used without object)
10.
to have impact or make contact forcefully:
The ball impacted against the bat with a loud noise.
11.
to have an impact or effect:
Increased demand will impact on sales.
Origin
1775-85; (noun and v.) back formation from impacted
Related forms
nonimpact, noun, adjective
postimpact, adjective
Usage note
The verb impact has developed the transitive sense “to have an impact or effect on” (The structured reading program has done more to impact the elementary schools than any other single factor) and the intransitive sense “to have an impact or effect” (The work done at the computer center will impact on the economy of Illinois and the nation). Although recent, the new uses are entirely standard and most likely to occur in formal speech and writing. See also impactful.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for impacted
  • In severely impacted communities, one of two scenarios is likely to prevail.
  • Predictably, the tourist boom has impacted the area.
  • All children are impacted by their parents' behavior throughout their lives.
  • She is doing what is best for her home life, which is greatly impacted due to her job.
  • It's been a cliché that sports are too ingrained in the culture to be impacted by a recession.
  • Despite being controlled by the government, their operations are not expected to be impacted.
  • Public-affairs staff for the base didn't say what kind of rocket impacted the base.
  • Calling in an airstrike now requires layer after layer of approval and all kinds of evidence that civilians won't be impacted.
  • Something that has truly impacted my life recently is the need for organ donors.
  • Everyone knows that food and grain prices are impacted by a large number of variables, including the price of fossil fuels.
British Dictionary definitions for impacted

impacted

/ɪmˈpæktɪd/
adjective
1.
(of a tooth) unable to erupt, esp because of being wedged against another tooth below the gum
2.
(of a fracture) having the jagged broken ends wedged into each other

impact

noun (ˈɪmpækt)
1.
the act of one body, object, etc, striking another; collision
2.
the force with which one thing hits another or with which two objects collide
3.
the impression made by an idea, cultural movement, social group, etc: the impact of the Renaissance on Medieval Europe
verb (ɪmˈpækt)
4.
to drive or press (an object) firmly into (another object, thing, etc) or (of two objects) to be driven or pressed firmly together
5.
to have an impact or strong effect (on)
Derived Forms
impaction, noun
Word Origin
C18: from Latin impactus pushed against, fastened on, from impingere to thrust at, from pangere to drive in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for impacted

impact

v.

c.1600, "press closely into something," from Latin impactus, past participle of impingere "to push into, dash against, thrust at" (see impinge). Originally sense preserved in impacted teeth (1876). Sense of "strike forcefully against something" first recorded 1916. Figurative sense of "have a forceful effect on" is from 1935. Related: Impacting.

n.

1781, "collision," from impact (v.). Figurative sense of "forceful impression" is from 1817 (Coleridge).

Online Etymology Dictionary, © 2010 Douglas Harper
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impacted in Medicine

impacted im·pact·ed (ĭm-pāk'tĭd)
adj.

  1. Wedged together at the broken ends. Used of a fractured bone.

  2. Placed in the alveolus in a manner prohibiting eruption into a normal position. Used of a tooth.

  3. Packed in or wedged in such a manner so as to fill or block an organ or a passage.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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