What does polarisation mean?
Polarisation describes the process of dividing a group, society, or political system into opposing camps whose views, identities, or interests appear increasingly incompatible. The word is especially common in discussion of politics, identity, religion, and social change, where it describes a movement from shared or mixed opinion toward sharp division. It carries a generally serious and often negative connotation, although it can also describe a neutral pattern of separation into distinct groups. In physics, polarisation is the orientation of oscillations in a transverse wave, particularly light, and can refer to the separation of light into differently oriented components. The scientific sense helped inspire the metaphorical social meaning: just as waves can have distinct orientations, communities can develop sharply opposed positions. Recognising polarisation is useful because it affects communication, politics, public debate, and social relationships, while remaining distinct from ordinary disagreement or simple diversity.
nounPolarisation is the process of dividing a society, political system, or group into opposing camps with sharply different views or interests. In physics, it also refers to the orientation of oscillations in a transverse wave, especially light, or the separation of light into components with different orientations.
- The process or state of becoming divided into opposing groups with different views, identities, or interests.
- In physics, the orientation of the oscillations in a transverse wave, especially light.
- The separation of light or another wave into components with different orientations, typically by passing it through a polarising filter.
"The debate over the reform became a source of deep polarisation, dividing neighbours and families along political lines."
"Growing economic inequality contributed to the polarisation of public opinion."
"The experiment demonstrated the polarisation of light by passing it through a filter and observing the changing brightness."
The plural is used when referring to separate instances or processes of polarisation, though the singular form is much more common.
"The polarisations within the two communities intensified after the election."
From the poles of the Earth to the opposite poles of politics: polarisation began with a direction of light and became a name for the widening divide between groups.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does polarisation come from?
The English word is a British-spelling formation based on “polarise” and the suffix “-ation,” with the underlying terms coming through Latin. The ultimate root is Latin “polus,” meaning “pole” or “axis,” reflected in words such as “pole,” “polar,” and “polarity.” The scientific sense developed from the idea of a wave having distinct orientations, while the social and political sense developed metaphorically by extension.
Related word forms
How polarisation is actually used
In British English, “polarisation” is standard, while US English usually uses “polarization.” The social and political senses are common in formal discussion and journalism; the scientific senses are standard in physics and optics.
Easily confused with polarisation
Polarisation usually means the development of opposing groups or orientations, whereas polarity means the quality of having two distinct poles, as in electrical polarity or magnetic polarity.