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deep vein thrombosis n a condition marked by the formation of a thrombus within a deep vein (as of the leg or pelvis) that may be asymptomatic or be accompanied by symptoms (as swelling and pain) and that is potentially life threatening if dislodgment of the thrombus results in pulmonary embolism abbr. DVT
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deep venous thrombosis (DVT) thrombosis of one or more deep veins, usually of the lower limb, characterized by swelling, warmth, and erythema; it is frequently a precursor of pulmonary embolism.Medical dictionary. 2011.