noun[mass noun] (plural aphereses /ɛɪfəˈriːsiːz/)
1 Linguistics Omission of the initial sound of a word, as when he is is pronounced he’s.
- In some words initial e has been lost by aphaeresis: squire from esquire, sample from example, state from estate.
- When the indefinite article was being restored to its separate existence, the word ‘atomy’ was falsely coined from ‘anatomy’ through aphaeresis, by the removal of the supposed indefinite article.
2 Medicine A technique by which a particular substance or component is removed from the blood, the main volume being returned to the body.
- Another method used for separating out some of the components of blood consists of a technique known as apheresis.
- Removing blood stem cells from your blood during apheresis doesn't hurt.
- Platelets collected by apheresis were counted as single units.
Mid 16th century: via late Latin from Greek aphairesis, from aphairein 'take away', from apo 'from' + hairein 'take'.
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