Polarity
# Polarity

Polarity may refer to:

## Science

* Electrical polarity, direction of electrical current
* Polarity (mutual inductance), the relationship between components such as transformer windings
* Polarity (projective geometry), in mathematics, a duality of order two
* Polarity in embryogenesis, the animal and vegetal poles within a blastula
* Cell polarity, differences in the shape, structure, and function of cells
* Chemical polarity, in chemistry, a separation of electric charge
* Magnetic polarity, north or south poles of a magnet
* Polar reciprocation, a concept in geometry also known as polarity
* Trilinear polarity, a concept in geometry of the triangle
* Polarity of a literal, in mathematical logic

## Humanities

* Polarity (international relations), a description of the distribution of power within the international system
* Polarity of gender, when a word takes the opposite grammatical gender than expected
* Polarity item, in linguistics, the sensitiveness of some expression to negative or affirmative contexts
* Affirmation and negation, also known as grammatical polarity
* Sexual polarity, a concept of dualism between masculine and feminine

## Other uses

* Polarity (game), a board game
* Polarity (Decrepit Birth album), 2010
* Polarity (Norman album), 2003
* Polarity (The Wedding album), 2007
