Definition of central line
medical
: an IV line that is inserted into a large vein (such as the superior vena cava) typically in the neck or near the heart for therapeutic or diagnostic purposes (as to administer medicines or fluids or withdraw blood)
Central lines transfuse IV fluids faster than standard IVs and are used to deliver medicines to sicker patients, usually in the intensive care unit or operating room.— Tim Friend
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Merriam-Webster unabridged
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Time Traveler for central line
The first known use of central line was in 1983
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