Definition

Noun: 1. The phenomenon in which waves of light or other radiation are restricted in direction of vibration: In physics, this refers to the process or state where the oscillations of a transverse wave (like light) are confined to a single plane or direction, rather than being random. 2. The condition of having or giving polarity: The state of possessing or exhibiting opposite or contrasting principles, tendencies, or opinions, leading to a sharp division.

Usage and Examples

• Scientific Context (Physics):
  • Sunglasses use polarisation to reduce glare from reflective surfaces like water.
  • The polarisation of the laser beam is critical for the experiment's success.
• Social/Political Context:
  • The polarisation of public opinion on the issue made compromise difficult.
  • The election campaign increased the polarisation between the two major parties.

Advanced Usage

• "Dielectric polarisation": In electromagnetism, this refers to the displacement of positive and negative charge within a material when placed in an electric field.
• "Political polarisation": A process where public opinion divides and goes to ideological extremes, reducing the prevalence of moderate or centrist views.

Variants and Related Words

• Polarise (Verb, chiefly British English) / Polarize (Verb, chiefly American English): To cause something to acquire polarity; to divide into two sharply contrasting groups.
  • The new policy is likely to polarise public opinion.
• Polarised (Adjective, chiefly British English) / Polarized (Adjective, chiefly American English): Describing something that has polarity or is divided.
  • We live in a deeply polarised society.
• Polariser (Noun, chiefly British English) / Polarizer (Noun, chiefly American English): A filter that causes polarisation of light.
  • A circular polariser is a useful filter for landscape photography.

Synonyms

• Division: The action of separating something into parts or the state of being divided.
• Dichotomy: A division or contrast between two things that are represented as being opposed or entirely different.
• Separation: The process or state of moving or being moved apart.

Antonyms

• Unification: The process of being united or made into a whole.
• Consensus: A general agreement among a group.
• Alignment: Arrangement in a straight line or correct relative position; can also mean political or social alliance.

Noun

1. the phenomenon in which waves of light or other radiation are restricted in direction of vibration
2. the condition of having or giving polarity