intrusion
[ in-troo-zhuhn ]
/ ɪnˈtru ʒən /
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noun
an act or instance of intruding.
the state of being intruded.
Law.
- an illegal act of entering, seizing, or taking possession of another's property.
- a wrongful entry after the determination of a particular estate, made before the remainderman or reversioner has entered.
Geology.
- emplacement of molten rock in preexisting rock.
- plutonic rock emplaced in this manner.
- a process analogous to magmatic intrusion, as the injection of a plug of salt into sedimentary rocks.
- the matter forced in.
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Origin of intrusion
OTHER WORDS FROM intrusion
in·tru·sion·al, adjectiveDictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for intrusion
British Dictionary definitions for intrusion
intrusion
/ (ɪnˈtruːʒən) /
noun
the act or an instance of intruding; an unwelcome visit, interjection, etcan intrusion on one's privacy
- the movement of magma from within the earth's crust into spaces in the overlying strata to form igneous rock
- any igneous rock formed in this way
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
Derived forms of intrusion
intrusional, adjectiveCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for intrusion
intrusion
[ ĭn-trōō′zhən ]
The movement of magma through cracks in underground rocks within the Earth, usually in an upward direction.♦ 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. Compare extrusion.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.