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invalidism
invalidity
invaluable
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invasive
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invasive

in·va·sive [ in váyssiv ]


adjective 
Definition:
 
1. medicine attacking adjacent tissue: having or showing a tendency to spread from the point of origin to adjacent tissue, as some cancers do

2. surgery into patient's body: done by inserting something into or operating on the body through an incision or a natural orifice

3. intruding: involving an intrusion or infringement, e.g. of somebody's privacy or rights

4. botany growing aggressively: growing aggressively in an area and stifling the growth of preexisting plants

5. military attacking: involving or mounting a military attack on a territory, especially with a view to conquering it


in·va·sive·ly adverb
in·va·sive·ness noun
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