NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,804 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

transfusion
(tranz-FYOO-zhun)
A procedure in which whole blood or parts of blood are put into a patient’s bloodstream through a vein. The blood may be donated by another person or it may have been taken from the patient and stored until needed. Also called blood transfusion.