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malignant |
Also found in: Medical, Legal, Wikipedia, Hutchinson | 0.02 sec. |
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malignant 1. Pathol (of a tumour) uncontrollable or resistant to therapy; rapidly spreading 2. History (in the English Civil War) a Parliamentarian term for a royalist malignant [mə′līg·nənt] (cell and molecular biology) Pertaining to cells that have undergone phenotypic transformation by oncogenes or protooncogenes. (medicine) Endangering the life or health of an individual. Of or pertaining to the growth and proliferation of certain neoplasms which terminate in death if not checked by treatment. 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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| Histologically, these tumors are characterized by a polymorphic infiltrate that contains variable amounts of malignant cells and widespread areas of tumor necrosis. The experiment showed that, consistent with malignant cell growth, prostate cells chronically exposed to arsenic grew more rapidly than control cells in both media. Scientists have yet to create a so-called cancer vaccine that reliably primes the immune system to recognize malignant cells and target them for destruction. |
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