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apheresis

[uh-fer-uh-sis for 1; af-uh-ree-sis for 2] /əˈfɛr ə sɪs for 1; ˌæf əˈri sɪs for 2/
noun
1.
Also, aphaeresis. 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.
Origin
1605-1615
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
Related forms
apheretic
[af-uh-ret-ik] /ˌæf əˈrɛt ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for apheretic

apheresis

/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
Derived Forms
apheretic, aphaeretic (ˌæfəˈrɛtɪk) adjective
Word Origin
C17: via Late Latin from Greek, from aphairein to remove
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
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apheretic in Medicine

apheresis aph·e·re·sis (āf'ə-rē'sĭs)
n.
A procedure in which blood is drawn from a donor and separated into its components, some of which are retained, such as plasma or platelets, and the remainder returned by transfusion to the donor. Also called hemapheresis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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