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