Unipolar \U`ni*po"lar\, a. [Uni- + polar.]
   1. (Physics) Having, or acting by means of, one pole only.
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   2. (Anat.) Having but one pole or process; -- applied to
      those ganglionic nerve cells which have but one radiating
      process; -- opposed to multipolar.
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   Unipolar induction (Elec.), induction, as in a conducting
      circuit, by only one pole of a magnet.

   Unipolar stimulation (Physiol.), the simulation sometimes
      produced when one electrode of an induction apparatus is
      applied to a nerve; -- called also unipolar induction
      action. --Du Bois-Reymond.
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