Medical Dictionary
invade
vt in·vade \in-ˈvād\
in·vad·edin·vad·ing
Medical Definition of INVADE
1
: to enter and spread within either normally (as in development) or abnormally (as in infection) often with harmful effects <protect the body from invading viruses> <branches of a nerve invade the skin area>
2
: to affect injuriously and progressively <gangrene invades healthy tissue>
—in·vad·er \-ˈvād-ər\ noun
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