apheresis

Definitions of apheresis

1. noun

   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
   synonyms: pheresis

   types:

   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

   type of:

   dialysis

   separation of different substances mixed together by passing them through a filter that only one of the substances can get through
2. noun

   (linguistics) omission at the beginning of a word as in `coon' for `raccoon' or `till' for `until'
   synonyms: aphaeresis

   type of:

   deletion, omission

   any process whereby sounds or words are left out of spoken words or phrases