polarizer
/ˈpoʊləraɪzər/
noun
- A device or material that filters light waves so that they vibrate in only one direction, used in sunglasses, camera filters, and scientific instruments.
- Many sunglasses use a built-in polarizer to cut down on bright reflections from roads and snow.
- In the lab, the scientist adjusted the polarizer to study how light passed through the crystal.
- The photographer attached a polarizer to the camera lens to reduce glare from the water.