Top Definition
The first drug in a new class designed to treat cancer by compromising its blood supply. Avastin (bevacizumab) is believed to prevent angiogenesis, the formation of new blood vessels that supply the tumor with blood, oxygen and other nutrients and allow the tumor to grow and metastasize to other sites in the body. Additionally, Avastin may interfere with tumor growth by causing blood vessels to shrink away from a tumor.
nf2 = lots of fucking surgery
nf2 + avastin = let's hope to hell my tumors fucking shrink!
by lifeinspiresme April 24, 2010

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