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1. Linguistics Variant of aphaeresis.
2. aph·e·re·sis (ăf′ə-rē′sĭs) Medicine 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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(əˈfɪərɪsɪs) or


1. (Linguistics) the omission of a letter or syllable at the beginning of a word
2. (Medicine) a method of collecting blood from donors that enables its different components, such as the platelets or plasma, to be separated out
Also informally called: pheresis
[C17: via Late Latin from Greek, from aphairein to remove]
apheretic, aphaeretic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or a•phaer•e•sis

(əˈfɛr ə sɪs)

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.
[1605–15; < Late Latin aphaeresis < Greek aphaíresis removal]
aph•e•ret•ic (ˌæf əˈrɛt ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.apheresis - (linguistics) omission at the beginning of a word as in `coon' for `raccoon' or `till' for `until'
linguistics - the scientific study of language
deletion, omission - any process whereby sounds or words are left out of spoken words or phrases
2.apheresis - a procedure in which blood is drawn and separated into its components by dialysisapheresis - a procedure in which blood is drawn and separated into its components by dialysis; some are retained and the rest are returned to the donor by transfusion
dialysis - separation of substances in solution by means of their unequal diffusion through semipermeable membranes
plasmapheresis - plasma is separated from whole blood and the rest is returned to the donor
plateletpheresis - platelets are separated from whole blood and the rest is returned to the donor
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n aféresis f
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
To make apheresis services available to patients admitted outside the normal operational hours of apheresis units, the apheresis service in the study institution uses an external nursing service as a supplement.
Objective: To evaluate the effect of apheresis procedure on platelet's activation dependent glycoproteins' expression on their surface.
Supporting units have become more flexible, inventory management has been enhanced, Hemacool refrigerators and freezers (AcuTemp Thermal Systems, Moraine, Ohio) are found at Role 2, apheresis platelets are collected in theater, aggressive collections in the United States have resulted in fresher blood on the shelf in theater, and protocols have been established to standardize transfusion ratios and the emergency collection of whole blood.
Abu Dhabi: The apheresis process being carried out at Shaikh Khalifa Medical City (SKMC) is offering new hope to patients with blood disorders, with the state-of-the-art treatment providing an alternative to a previous method that carried a high possibility of morbidity and mortality.
Summary: Shaikh Khalifa Medical City completes 500 apheresis sessions
In the system, a special kit called Apheresis kit is used which is so far available in five of the 10 blood banks of Delhi government.
Terumo BCT has made two grants of $10,000 to fund education to raise the awareness and understanding of apheresis medicine.
Five cases of arterial thrombosis after apheresis have been described in the literature (Table).
Because these are available through the inpatient dialysis unit, it provided an opportunity to educate Tom on apheresis treatments as well as treatment options for chronic kidney disease.
Aegerion Pharmaceuticals, Inc., has unveiled that the European Commission has approved LOJUXTA (lomitapide) hard capsules as an adjunct to a low-fat diet and other lipid- lowering medicinal products with or without low density lipoprotein (LDL) apheresis in adult patients with homozygous familial hypercholesterolemia (HoFH).