bipolar

from WordNet (r) 3.0 (2006)

bipolar
    adj 1: of or relating to manic depressive illness
    2: of, pertaining to, or occurring in both polar regions; "the
       bipolar distribution of certain species"
    3: having two poles [ant: {unipolar}]

from The Collaborative International Dictionary of English v.0.48

Bipolar \Bi*po"lar\, a. [Pref. bi- + polar. Cf. {Dipolar}.]
   Doubly polar; having two poles; as, a bipolar cell or
   corpuscle.
   [1913 Webster]

from The Free On-line Dictionary of Computing (8 July 2008)

bipolar

   1. <electronics> See {bipolar transistor}.

   2. <communications> In digital transmission, an electrical
   line signalling method where the mark value alternates between
   positive and negative polarities.

   See also {AMI}.

   (1995-03-02)

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