Polarity may refer to:
Science
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Electrical polarity
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. The moving p ...
, direction of electrical current
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Polarity (mutual inductance), the relationship between components such as transformer windings
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Polarity (projective geometry), in mathematics, a duality of order two
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Polarity in embryogenesis
In developmental biology, an embryo is divided into two hemispheres: the animal pole and the vegetal pole within a blastula. The animal pole consists of small cells that divide rapidly, in contrast with the vegetal pole below it. In some cases, th ...
, the animal and vegetal poles within a blastula
*
Cell polarity
Cell polarity refers to spatial differences in shape, structure, and function within a cell. Almost all cell types exhibit some form of polarity, which enables them to carry out specialized functions. Classical examples of polarized cells are des ...
, differences in the shape, structure, and function of cells
*
Chemical polarity
In chemistry, polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end.
Polar molecules must contain one or more pol ...
, in chemistry, a separation of electric charge
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Magnetic polarity, north or south poles of a magnet
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Polar reciprocation
In geometry, a pole and polar are respectively a point and a line that have a unique reciprocal relationship with respect to a given conic section.
Polar reciprocation in a given circle is the transformation of each point in the plane into it ...
, a concept in geometry also known as polarity
*
Trilinear polarity, a concept in geometry of the triangle
*Polarity of a
literal
Literal may refer to:
* Interpretation of legal concepts:
** Strict constructionism
** The plain meaning rule (a.k.a. "literal rule")
* Literal (mathematical logic), certain logical roles taken by propositions
* Literal (computer programmin ...
, in mathematical logic
Humanities
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Polarity (international relations)
Polarity in international relations is any of the various ways in which power is distributed within the international system. It describes the nature of the international system at any given period of time. One generally distinguishes three types ...
, a description of the distribution of power within the international system
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Polarity of gender
In linguistics, polarity of gender is when a lexical item takes the opposite grammatical gender than expected. The phenomenon is widespread in Afroasiatic languages such as Semitic and Cushitic tongues. For example, in Somali, which is a Cushiti ...
, when a word takes the opposite grammatical gender than expected
*
Polarity item In linguistics, a polarity item is a lexical item that is associated with affirmation or negation. An affirmation is a positive polarity item, abbreviated PPI or AFF. A negation is a negative polarity item, abbreviated NPI or NEG.
The linguisti ...
, in linguistics, the sensitiveness of some expression to negative or affirmative contexts
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Affirmation and negation
In linguistics and grammar, affirmation (abbreviated ) and negation () are ways in which grammar encodes positive and negative polarity into verb phrases, clauses, or other utterances. An affirmative (positive) form is used to express the validit ...
, also known as grammatical polarity
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Sexual polarity, a concept of dualism between masculine and feminine
Other uses
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Polarity (game), a board game
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''Polarity'' (Decrepit Birth album), 2010
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''Polarity'' (Norman album), 2003
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''Polarity'' (The Wedding album), 2007
See also
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Polar (disambiguation)
Polar may refer to:
Geography
Polar may refer to:
* Geographical pole, either of two fixed points on the surface of a rotating body or planet, at 90 degrees from the equator, based on the axis around which a body rotates
*Polar climate, the cli ...
*
Polarization (disambiguation)
Polarization or polarisation may refer to:
Mathematics
*Polarization of an Abelian variety, in the mathematics of complex manifolds
* Polarization of an algebraic form, a technique for expressing a homogeneous polynomial in a simpler fashion b ...
*
Pole (disambiguation)
Pole may refer to:
Astronomy
*Celestial pole, the projection of the planet Earth's axis of rotation onto the celestial sphere; also applies to the axis of rotation of other planets
*Pole star, a visible star that is approximately aligned with the ...
*
Dualism (disambiguation)
Dualism most commonly refers to:
* Mind–body dualism, a philosophical view which holds that mental phenomena are, at least in certain respects, not physical phenomena, or that the mind and the body are distinct and separable from one another
** ...
*
Symmetric bilinear form § Orthogonal polarities
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