NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,779 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.
- listen (PLAZ-muh-feh-REE-sis)
- The process of separating certain cells from the plasma in the blood by a machine; only the cells are returned to the person. Plasmapheresis can be used to remove excess antibodies from the blood.