- 1(Of water, air, or glass) make (a ray of light) change direction when it enters at an angle: the rays of light are refracted by the material of the lensMore example sentences
- A light ray is refracted when it passes from one medium to another at an angle and its speed changes.
- The hotter, denser air refracts the light coming from the horizon and the viewer sees an image of the sky near the horizon.
- When the temperature difference is large enough, the warmer air refracts the light and amazing images can be seen.
early 17th century: from Latin refract- 'broken up', from the verb refringere, from re- 'back' + frangere 'to break'.
More definitions of refractDefinition of refract in:
- The US English dictionary