Unipolar

Unipolar may refer to:

Electronics

 * Unipolar generator, a DC electrical generator
 * Unipolar motor, a type of small DC electric motor
 * Unipolar transistor, transistors that involve single-carrier-type operation

Science and medicine

 * Unipolar depression or major depressive disorder
 * Unipolar mania, an uncommon mental disorder that causes manic episodes without any history of depression
 * Unipolar neuron, a neuron with a single neurite

Other uses

 * Unipolar encoding, a line code
 * Unipolarity, a distribution of power in international relations in which one state exercises most of the cultural, economic, and military influence