Bipolar

Bipolar may refer to:

Astronomy

Bipolar coordinates, a two-dimensional orthogonal coordinate system
Bipolar set, a derivative of a polar set
Bipolar theorem, a theorem in convex analysis which provides necessary and sufficient conditions for a cone to be equal to its bipolar

Bipolar disorder, a mental disorder that causes periods of depression and periods of elevated mood
- Bipolar I disorder, a bipolar spectrum disorder characterized by the occurrence of at least one manic or mixed episode
- Bipolar II disorder, a bipolar spectrum disorder characterized by at least one episode of hypomania and at least one episode of major depression
- Bipolar disorder not otherwise specified, a diagnosis for bipolar disorder when it does not fall within the other established sub-types
Bipolar neuron, a type of neuron which has two extensions

Bi-Polar (Vanilla Ice album), 2001
Bipolar, a 2009 album by rock group El Cuarteto de Nos
"Bipolar", a song by Gloria Trevi from her 2013 album De Película
"Bipolar", a song by Gucci Mane from his 2018 album Evil Genius
Bipolar (Up Dharma Down album), 2008
"Bipolar", a song by Blonde Redhead from their 1997 album Fake Can Be Just as Good

Bipolar electricity transmission, using a pair of conductors in opposite polarity
Bipolar encoding, a type of line code where two nonzero values are used
- Bipolar violation, a violation of the bipolar encoding rules
Bipolar electric motor, an electric motor with only two poles to its stationary field
- Bi-Polar (locomotive), a locomotive using a bipolar electric motor
Bipolar signal, a signal that may assume either of two polarities, neither of which is zero