bipolar
adjective
bi·po·lar
(ˌ)bī-ˈpō-lər
1
: having or marked by two mutually repellent forces or diametrically opposed natures or views
2
a
: having or involving the use of two poles or polarities
bipolar generators
bipolar ECG leads
b
electronics
: relating to, being, or using a transistor in which both electrons and holes (see hole entry 1 sense 1b(3)) are utilized as charge carriers (see carrier sense 2e)
3
: relating to, associated with, or occurring in both polar (see polar entry 1 sense 1a) regions
bipolar species of birds
4
psychology
: being, characteristic of, or affected with a bipolar disorder
bipolar patients
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Merriam-Webster unabridged
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