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unipolar

[yoo-nuh-poh-ler]
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adjective
  1. Also homopolar. Physics. having or pertaining to a single magnetic or electric pole.
  2. Anatomy. of or relating to a nerve cell in spinal and cranial ganglia in which the incoming and outgoing processes fuse outside the cell body.
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Origin of unipolar

First recorded in 1805–15; uni- + polar
Related formsu·ni·po·lar·i·ty [yoo-nuh-poh-lar-i-tee, -puh-] /ˌyu nə poʊˈlær ɪ ti, -pə-/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for unipolar

unipolar

adjective
  1. of, concerned with, or having a single magnetic or electric pole
  2. (of a nerve cell) having a single process
  3. (of a transistor) utilizing charge carriers of one polarity only, as in a field-effect transistor
  4. (of nervous depression) occurring without accompanying bouts of mania
  5. dominated by one superpower, esp the United StatesSee bipolar
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Derived Formsunipolarity (ˌjuːnɪpəʊˈlærɪtɪ), noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unipolar

adj.

1812, from uni- + polar.

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Online Etymology Dictionary, © 2010 Douglas Harper

unipolar in Medicine

unipolar

(yōō′nĭ-pōlər)
n.
  1. Having a single fibrous process. Used of a neuron.
  2. Situated at only one extremity of a cell.
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Related formsu′ni•po•lari•ty (-pō-lărĭ-tē, -pə-) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.