apheresis

noun
aphe·​re·​sis | \ˌa-fə-ˈrē-səs \
plural aphereses\ -​ˌsēz \

Definition of apheresis 

: withdrawal of blood from a donor's body, removal of one or more blood components (such as plasma, platelets, or white blood cells), and transfusion of the remaining blood back into the donor

called also pheresis

Examples of apheresis in a Sentence

Recent Examples on the Web

Plasma today is mostly collected via apheresis, a process where whole blood is extracted, spun in a centrifuge, and the plasma is skimmed off. The Economist, "Bans on paying for human blood distort a vital global market," 10 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'apheresis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of apheresis

1977, in the meaning defined above

History and Etymology for apheresis

from -apheresis (as in plasmapheresis)

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The first known use of apheresis was in 1977

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More Definitions for apheresis

apheresis

noun
aphe·​re·​sis | \ˌa-fə-ˈrē-səs\
plural aphereses\ -​ˌsēz \

Medical Definition of apheresis 

: withdrawal of blood from a donor's body, removal of one or more components (as plasma, blood platelets, or white blood cells) from the blood, and transfusion of the remaining blood back into the donor

called also pheresis

— see leukapheresis, plasmapheresis, plateletpheresis

More from Merriam-Webster on apheresis

See words that rhyme with apheresis

Britannica.com: Encyclopedia article about apheresis

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