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
1605-15; < 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
Examples from the web for apheresis
  • Typically, you undergo two to four apheresis sessions, depending on how many stem cells are needed.
British Dictionary definitions for apheresis

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
apheresis 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.