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invasion |
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invasion 1. Pathol the spread of cancer from its point of origin into surrounding tissues 2. Ecology the movement of plants to a new area or to an area to which they are not native invasion [in′vā·zhən] (geology) The movement of one material into a porous reservoir area that has been occupied by another material. (medicine) The phase of an infectious disease during which the pathogen multiplies and is distributed; precedes signs and symptoms. The process by which microorganisms enter the body. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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