/im pak"tid/, adj.
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.
[1675-85; obs. impact adj. ( < L impactus ptp. of impingere to fasten, cause to collide, strike, equiv. to im- IM-1 + pag-, var. s. of pangere to drive in, plant firmly + -tus ptp. suffix) + -ED2; see IMPINGE]

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Universalium. 2010.

Look at other dictionaries:

  • Impacted — Im*pact ed, a. 1. Driven together or close. [1913 Webster] 2. Specifically: (Dentistry) Grown in an abnormal direction so that it is wedged against another tooth and cannot erupt normally; of teeth, especially the third molar; as, to extract an… …   The Collaborative International Dictionary of English

  • impacted — index inextricable Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • impacted — [im pakt′id] adj. 1. pressed tightly together; driven firmly in; wedged in; esp., firmly lodged in the jaw: said of a tooth unable to erupt properly because of its abnormal position, lack of space, etc. ☆ 2. financially or otherwise strained by… …   English World dictionary

  • impacted — Wedged or pressed closely so as to move as a single unit. * * * im·pact·ed im pak təd adj 1 a) blocked by material (as feces) that is firmly packed or wedged in position <an impacted colon> b) wedged or lodged in a bodily passage <an… …   Medical dictionary

  • Impacted — Impact Im*pact , 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]… …   The Collaborative International Dictionary of English

  • impacted — adj. firmly wedged. An impacted tooth (usually a wisdom tooth) is one that cannot erupt into a normal position because it is obstructed by other tissues. Impacted faeces are so hard and dry that they cannot pass through the anus without special… …   The new mediacal dictionary

  • impacted — adjective Date: circa 1616 1. a. packed or wedged in b. deeply entrenched ; not easily changed or removed 2. of a tooth wedged between the jawbone and another tooth 3. of, relating to, or being an area (as a school district) providing tax… …   New Collegiate Dictionary

  • Impacted — The term impacted may refer to any of the following* A condition where demand for a particular service, commodity or space is in severely short supply or high demand, such as on street parking spaces, available seats in a very popular college… …   Wikipedia

  • impacted — im|pact|ed [ımˈpæktıd] adj a tooth that is impacted is growing under another tooth so that it cannot develop properly …   Dictionary of contemporary English

  • impacted — im|pact|ed [ ım pæktəd ] adjective an impacted tooth cannot grow because it is under another tooth …   Usage of the words and phrases in modern English

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