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apheresis

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

noun

  1. 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.

  2. 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.


apheresis British  
/ ˌæfəˈrɛtɪk, əˈfɪərɪsɪs /

noun

  1. the omission of a letter or syllable at the beginning of a word

  2. a method of collecting blood from donors that enables its different components, such as the platelets or plasma, to be separated out

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • apheretic adjective

Etymology

Origin of apheresis

1605–15; < Late Latin aphaeresis < Greek aphaíresis a taking away, equivalent to aphairé ( în ) to take away ( ap- ap- 2 + haireîn to snatch) + -sis -sis

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He doesn’t use an alarm clock — he never needs one — when he wanders downstairs to chug exactly 32 ounces of water to prepare for his 8 a.m. apheresis appointment, or blood platelet donation.

From Seattle Times • Nov. 9, 2022

The treatment uses a process called apheresis to extract T cells from the patient and then genetically modifies the cells to add a receptor, the chimeric antigen, which binds with the cancer cells.

From Salon • Aug. 26, 2022

Experimental treatments are being offered at private clinics in Cyprus, Germany, and Switzerland where medics use apheresis, a "blood washing" treatment, and anticoagulants - blood thinning drugs.

From BBC • Aug. 22, 2022

Putrino is now running a small study of Long Covid patients with microclots in blood plasma, testing whether apheresis, which filters blood and reinfuses it, improves their symptoms.

From Science Magazine • Jun. 15, 2022

She later joined the NIH Clinical Center, whose apheresis clinic was named in her honor after her retirement in 1990.

From Washington Post