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Pronunciation: id'e-o-sin'kra-se


  1. A particular mental, behavioral, or physical characteristic or peculiarity.
  2. In pharmacology, an abnormal reaction to a drug, sometimes specified as genetically determined.

[G. idiosynkrasia, fr. idios, one's own, + synkrasis, a mixing together]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.