Dictionary

intrusion

noun in·tru·sion \in-ˈtrü-zhən\

Definition of INTRUSION

1
:  the act of intruding or the state of being intruded; especially :  the act of wrongfully entering upon, seizing, or taking possession of the property of another
2
:  the forcible entry of molten rock or magma into or between other rock formations; also :  the intruded magma
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Origin of INTRUSION

Middle English, from Anglo-French, from Medieval Latin intrusion-, intrusio, from Latin intrudere
First Known Use: 15th century
INTRUSION Defined for Kids

intrusion

noun in·tru·sion \in-ˈtrü-zhən\

Definition of INTRUSION for Kids

1
:  the act of going or forcing in without being wanted
2
:  something that goes in or interferes without being wanted <The phone call was an unwelcome intrusion.>

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