INVASION

• (noun) the act of invading; the act of an army that invades for conquest or plunder

• (noun) (pathology) the spread of pathogenic microorganisms or malignant cells to new sites in the body

  "the tumor's invasion of surrounding structures"

• (noun) any entry into an area not previously occupied

  "an invasion of tourists", "an invasion of locusts"

  synonyms : encroachment , intrusion

WordNet® 3.0, © 2006 by Princeton University.

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