American Heritage® Dictionary of the English Language, Fourth Edition
- n. Linguistics Variant of aphaeresis.
- n. 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.
Century Dictionary and Cyclopedia
- n. In grammar, the omission of a letter or an unaccented syllable from the beginning of a word. Examples in English are round, adv., for around, vantage for advantage, squire for esquire, ‘mid for amid, pon for upon, etc. The most common form of apheresis is that called
- n. In med.: The removal of anything noxious. Large and injurious extraction of blood.
- n. In surgery, amputation.
- n. medicine The removal of blood from a patient, and the removal of certain components (such as platelets) from that blood, followed by the transfusion of the filtered blood back to the donor (patient).
GNU Webster's 1913
- n. (Gram.) The dropping of a letter or syllable from the beginning of a word; e. g., cute for
- n. (Surg.), obsolete An operation by which any part is separated from the rest.
- n. 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
- n. (linguistics) omission at the beginning of a word as in `coon' for `raccoon' or `till' for `until'
- From Latin aphaeresis, from Ancient Greek ἀφαίρεσις (aphairesis, "a taking away"), from ἀφαιρέειν (aphaireein) (from ἀφ- (aph-, “aph-”, variant of ἀπό (apo, "off”, “away from") before an aspirated vowel) + αἱρέειν (aireein, "to take”, “to snatch")) + -σις (-sis, suffix forming nouns of action); the grammatical sense developed in Latin. (Wiktionary)
“The current state of bone marrow transplantation is that the immature blood cells are harvested using a process called apheresis which is in fact very similar to undergoing dialysis.”
“Today more than two-thirds of all donations are accomplished through a process called apheresis.”
“The agency Friday issued a heparin import alert as part of its investigation into hundreds of reports of allergic reactions in large doses of heparin sold by Baxter for heart surgery, kidney dialysis and a procedure called apheresis used in immune-disorder patients.”
“The blood flows into a sterilized machine that separates the plasma from the red blood cells and then pumps blood back into your bloodstream, in a process called apheresis.”
“The procedure had more postoperative complications than the new blood-drawing method, known as apheresis.”
“Called "apheresis," the procedure requires the donor to undergo five days of drug injections to stimulate production of specialized blood cells.”
“They can then be collected by a process called apheresis, a process used as standard-of-care in blood donations.”
“Then more recently, we developed a technology to double the volume of red cells safely collected from a volunteer blood donor, through the same "apheresis," or separation technology we use to collect platelets and plasma.”
“As the judges pointed out, there is no logical basis for allowing compensation for blood, sperm and eggs while disallowing bone-marrow cells obtained through apheresis.”
“In apheresis, the patient's blood is passed through a machine that removes the stem cells (immature cells from which all blood cells develop); it is then returned to the body.”
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