[ yoo-nuh-poh-ler ]
/ ˌyu nəˈpoʊ lər /


Also homopolar. Physics. having or pertaining to a single magnetic or electric pole.
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.

Origin of unipolar

First recorded in 1805–15; uni- + polar


u·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. 2020

Examples from the Web for unipolar

British Dictionary definitions for unipolar

/ (ˌjuːnɪˈpəʊlə) /


of, concerned with, or having a single magnetic or electric pole
(of a nerve cell) having a single process
(of a transistor) utilizing charge carriers of one polarity only, as in a field-effect transistor
(of nervous depression) occurring without accompanying bouts of mania
dominated by one superpower, esp the United StatesSee bipolar

Derived forms of unipolar

unipolarity (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

Medical definitions for unipolar

[ yōō′nĭ-pōlər ]


Having a single fibrous process. Used of a neuron.
Situated at only one extremity of a cell.

Other words from unipolar

u′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.