apheresis vs. plasmapheresis

apheresis

[uh-fer-uh-sis, af-uh-ree-sis] / əˈfɛr ə sɪs, ˌæf əˈri sɪs /

noun

Also the loss or omission of one or more letters or sounds at the beginning of a word, as in squire for esquire, or count for account.
Medicine/Medical. the withdrawal of whole blood from the body, separation of one or more components, and return by transfusion of remaining blood to the donor.

plasmapheresis

[plaz-muh-fuh-ree-sis] / ˌplæz mə fəˈri sɪs /

Medicine/Medical.

a type of apheresis in which blood cells are returned to the bloodstream of the donor and the plasma is used, as for tranfusion.