intrusion

American  

[in-troo-zhuhn] / ɪnˈtru ʒən /

noun

1. an act or instance of intruding.

2. the state of being intruded.

3. Law.

   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.

4. Geology.

   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.

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intrusion British  

/ ɪnˈtruːʒən /

noun

1. the act or an instance of intruding; an unwelcome visit, interjection, etc

   an intrusion on one's privacy

2. 1. the movement of magma from within the earth's crust into spaces in the overlying strata to form igneous rock

   2. any igneous rock formed in this way

3. property law an unlawful entry onto land by a stranger after determination of a particular estate of freehold and before the remainderman or reversioner has made entry

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intrusion Scientific  

/ ĭn-tro̅o̅′zhən /

1. The movement of magma through cracks in underground rocks within the Earth, usually in an upward direction.

2. ◆ Rocks that form from the underground cooling of magma are generally coarse-grained (because they cool slowly so that large crystals have time to grow) and are called intrusive rocks.

3. Compare extrusion

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Other Word Forms

• intrusional adjective

Etymology

Origin of intrusion

1250–1300; Middle English < Medieval Latin intrūsiōn- (stem of intrūsiō ), equivalent to Latin intrūs ( us ), past participle of intrūdere to intrude (equivalent to intrūd- verb stem + -tus past participle suffix, with dt < s ) + -iōn- -ion

Example Sentences

However, concerns over those intrusions "escalated significantly" following the discovery of the threatening graffiti.

From BBC

“Restoration is the name of the game, not intrusion,” Mike told me, and he wasn’t talking just about the estuary.

From Los Angeles Times

In a witness statement, Sir Elton described the press intrusions - which also included article's about his own health - as "outside even the most basic standards of human decency".

From BBC

The difference in the scores “demonstrates that even minimal work intrusions can undo the psychological benefits of time off,” says DeVoe.

From The Wall Street Journal

Vivian had said she did not want any intrusion on her and her granddaughter’s “special time” together, even though the girl volunteered here every day.

From Literature

Related Words

• encroachment
• imposition
• incursion
• interference
• intervention
• invasion