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Pronunciation: bī′nār-ē


  1. Comprising two components, elements, molecules, or other feature.
  2. Denoting a choice of two mutually exclusive outcomes for one event (male or female, heads or tails, affected or unaffected).

[L. binarius, consisting of two, fr. bini, two at a time]

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