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Death of a portion of tissue or an organ in the body. This is caused when not enough blood is supplied to the tissue, whether from trauma, radiation, or chemicals. When larger areas of tissues are dead, the tissue is called gangrene. MEDLINEplus |
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A cell, especially an abundant type of granular white blood cell that is highly destructive of microorganisms. Bloodline |
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A surface that does not activate coagulation factors (as indicated by lengthening or shortening of the PT or APTT). |