having two poles: a bipolar dynamo, a bipolar neuron relating to or found at the North and South Poles having or characterized by two opposed opinions, natures, etc (of a transistor) utilizing both majority and minority charge carriers (of a person) having bipolar disorder
WordReference Random House Unabridged Dictionary of American English © 2026
bi•po•lar
(bī pō′lər),USA pronunciation adj.
bi′po•lar′i•ty, n.
bi•po′lar•i•za′tion, n.
- Geographyhaving two poles, as the earth.
- Geographyof, pertaining to, or found at both polar regions.
- characterized by opposite extremes, as two conflicting political philosophies.
- Electronicsof or pertaining to a transistor that uses both positive and negative charge carriers.
- bi-1 + polar 1800–10
bi•po′lar•i•za′tion, n.
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