Noun
- 1. aphaeresis, apheresis, omission, deletion
- usage: (linguistics) omission at the beginning of a word as in `coon' for `raccoon' or `till' for `until'
- 2. apheresis, pheresis, dialysis
- usage: 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
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