title: Polarity
text: # 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
  