1. to cause people to divide into two opposing groups with different opinions
Usage: British spelling
2. to restrict the vibrations of light waves to a single plane
Usage: physics
3. to give magnetic or electrical polarity to something
Usage: physics

Examples

• The controversial policy began to polarise public opinion.
• Social media can polarise communities on important issues.
• The debate polarised voters along party lines.
• Sunglasses use special lenses to polarise light.
• The scientist polarised the metal using an electromagnetic field.
• Political rhetoric tends to polarise rather than unite people.
• The filter polarises the light waves before they reach the camera.