central venous catheter

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central venous catheter n. an intravenous catheter for insertion directly into a large vein, most commonly the subclavian under the clavicle or the jugular in the neck, or indirectly via a peripheral vein (e.g. the femoral vein in the groin). It enables intravenous drugs and fluids to be given and intravenous pressures to be measured during operations or in intensive care.