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Meaning of intrusion

in•tru•sion

Pronunciation: (in-tr'zhun), [key]
— n.
  1. an act or instance of intruding.
  2. the state of being intruded.
    1. an illegal act of entering, seizing, or taking possession of another's property.
    2. a wrongful entry after the determination of a particular estate, made before the remainderman or reversioner has entered.
    1. emplacement of molten rock in preexisting rock.
    2. plutonic rock emplaced in this manner.
    3. a process analogous to magmatic intrusion, as the injection of a plug of salt into sedimentary rocks.
    4. the matter forced in.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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