资料来源 : Webster's Revised Unabridged Dictionary (1913)

Apheresis \A*pher"e*sis\ (?; 277), n. [L. aphaeresis, Gr. ?, fr.
   ? to take away; ? + ? to take.]
   1. (Gram.) The dropping of a letter or syllable from the
      beginning of a word; e. g., cute for acute.

   2. (Surg.) An operation by which any part is separated from
      the rest. [Obs.] --Dunglison.

资料来源 : WordNet®

apheresis
     n 1: (linguistics) omission at the beginning of a word as in
          `coon' for `raccoon' or `till' for `until' [syn: {aphaeresis}]
     2: 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 [syn: {pheresis}]