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   In·tru·sion

   /inˈtro͞oZH(ə)n/

   

   noun

   • 1. the action of intruding: "he was furious about this intrusion into his private life"
   • ▪ a thing that intrudes: "they oppose the excavations as an intrusion on their heritage"
   • 2. the action or process of forcing a body of igneous rock between or through existing formations, without reaching the surface.
   • ▪ a body of igneous rock which has intruded the surrounding strata.

   Word Origin late Middle English (in the sense ‘invasion, usurpation’): from medieval Latin intrusio(n-), from Latin intrudere ‘thrust in’ (see intrude).

   Scrabble Points: 9

   • I

     1

   • N

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   • T

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   • R

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   • U

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   • S

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   • I

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   • O

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   • N

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