from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Having, acting by means of, or produced by a single magnetic or electric pole.
  • adj. Biology Having a single fibrous process. Used of a neuron.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having a single pole

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having, or acting by means of, one pole only.
  • adj. Having but one pole or process; -- applied to those ganglionic nerve cells which have but one radiating process; -- opposed to multipolar.

from The Century Dictionary and Cyclopedia

  • In electricity, pertaining to a unipolar or nonpolar electric machine, that is, a machine in which the armature rotates in a. uniform magnetic field. Unipolar electric generators require high speeds and therefore were not used before the advent of the steam turbine.
  • Exhibiting one kind of polarity.
  • In biology, having a single pole, as a nerve-cell or a rete: correlated with bipolar, multipolar.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. having a single pole


from Wiktionary, Creative Commons Attribution/Share-Alike License

uni- +‎ polar



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