apheresis
UK /əˈfɪəɹɪsɪs/ · US /əˈfɛɹəsɪs/ noun
Forms aphereses aphaeresis aphæresis
- noun (phonetics, linguistics, prosody, rhetoric) Elision, suppression, or complete loss of a letter or sound (syllable) from the beginning of a word, such as the development of special from especial.
- noun (medicine, specific, still current) 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).
- noun (medicine, general, obsolete) Extirpation or extraction of a superfluity (especially a pathological one) from the body, especially blood.
Synonyms
Etymology
From Latin aphaeresis, from Ancient Greek ἀφαίρεσις (aphaíresis, “a taking away”), from ἀφαιρέω (aphairéō) (from ἀφ- (aph-), variant of ἀπό (apó, “off, away from”) before an aspirated vowel) + αἱρέω (hairéō, “to take; to snatch”)) + -σις (-sis, suffix forming nouns of action); the grammatical sense developed in Latin.
Webster’s 1913
- noun The dropping of a letter or syllable from the beginning of a word; e. g., cute for acute.
- noun An operation by which any part is separated from the rest.
Etymology [L. aphaeresis, Gr. 1. (Gram.) Defn: The dropping of a letter or syllable from the beginning of a word; e. g., cute for acute. 2. (Surg.) Defn: An operation by which any part is separated from the rest. [Obs.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “apheresis”, CC BY-SA 4.0. Details