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intrusion definition

in·trusion (in tro̵̅o̅′z̸hən)

noun

    1. the act of intruding
    2. Law the illegal entering upon another's land without right to possession
  2. Geol.
    1. the invasion, as of liquid magma, into or between solid rock
    2. the body of rock resulting from such invasion

Etymology: ME < OFr < ML intrusio < L intrusus: see intrusive

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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