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bipolar - 8 dictionary results
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bi⋅po⋅lar

  [bahy-poh-ler]
Use bipolar in a Sentence
–adjective
1. having two poles, as the earth.
2. of, pertaining to, or found at both polar regions.
3. characterized by opposite extremes, as two conflicting political philosophies.
4. Electronics. of or pertaining to a transistor that uses both positive and negative charge carriers.
Origin:
1800–10; bi- 1 + polar

Related forms:
bi⋅po⋅lar⋅i⋅ty, noun
bi⋅po⋅lar⋅i⋅za⋅tion, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To bipolar
Rehab and Treatment
 Let us help you Recover. call 1-877-345-3221
 www.RehabAndTreatment.com
Treatment for Bipolar
 Living With Bipolar Mania? Learn How Medicine Can Help.
 www.managingbipolar.com
bi·po·lar   (bī-pō'lər)   
adj.  
  1. Relating to or having two poles or charges.
  2. Relating to a device capable of using two polarizations, such as a transistor that uses positive and negative charge carriers.
  3. Relating to or involving both of the earth's polar regions.
  4. Having two opposite or contradictory ideas or natures: the bipolar world of the postwar period.
  5. Biology Having two poles or opposite extremities: a bipolar neuron.
  6. Psychology Relating to a major affective disorder that is characterized by episodes of mania and depression.
bi'po·lar'i·ty (-lār'ĭ-tē) n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Bipolar

Bi*po"lar\, a. [Pref. bi- + polar. Cf. Dipolar.] Doubly polar; having two poles; as, a bipolar cell or corpuscle.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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bipolar 
1810 with fig. sense of "of double aspect;" 1859 with reference to physiology, from bi- + polar.
Online Etymology Dictionary, © 2001 Douglas Harper
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Main Entry: bi·po·lar
Pronunciation: (')bI-'pO-l&r
Function: adjective
1 : having or involving the use of two poles<bipolar encephalograph leads>
2 of a neuron : having an efferent and an afferent process
3 : being, characteristic of, or affected witha bipolar disorder <bipolar depression> <bipolar affectively ill patients> —compare UNIPOLAR 2
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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bipolar bi·po·lar (bī-pō'lər)
adj.

  1. Having two poles; used especially of nerve cells in which the branches project from two usually opposite points.
  2. Of or relating to both ends or poles of a bacterial or other cell.
  3. Of or relating to a major affective disorder that is characterized by episodes of mania and depression.
bi'po·lar'i·ty (-lār'ĭ-tē) n.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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bipolar   (bī-pō'lər)  Pronunciation Key 
  1. Relating to or having two poles or charges.
  2. Relating to a semiconductor device, such as a transistor, that exploits the electrical characteristics of contact between two substances, one with an inherent positive charge, the other with an inherent negative charge.
  3. Relating to or involving both of the Earth's polar regions.
  4. Relating to a neuron that has two processes or extremities.
  5. Relating to bipolar disorder.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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bipolar
1. See bipolar transistor.
2. In digital transmission, an electrical line signalling method where the mark value alternates between positive and negative polarities.
See also AMI.
(1995-03-02)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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