Definition of refract in English:

refract

verb

[WITH OBJECT]usually be refracted
  • 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 lens’
    • ‘It acted like a prism on the setting sunlight striking it, refracting the light in much the same way as a crystal would.’
    • ‘The rays were detected by a calcium sulfide thread that glowed slightly in the dark when the rays were refracted through a 60-degree angle prism of aluminum.’
    • ‘In particular, this initial work has demonstrated the enormous potential for a new generation of lenses, which function, of course, by refracting the rays of incident waves.’
    • ‘When the temperature difference is large enough, the warmer air refracts the light and amazing images can be seen.’
    • ‘This is because of particles in the air refracting the light.’
    • ‘Not only is the roof above them made of glass, it is also filled with water, further refracting the light received in the public spaces below.’
    • ‘Spectacles and contact lenses refract the light before it enters the eye, helping the eye to focus objects sharply.’
    • ‘The wavelength of light affects how much it is refracted on entering the atmosphere, with red light refracted the most and blue least (as in rainbows).’
    • ‘The cornea and lens refract the incoming light rays to focus them on the retina at the back of the eye.’
    • ‘They cut glass, they refract light into perfect hearts-and-arrows, and they have superlative fire and brilliance.’
    • ‘The hotter, denser air refracts the light coming from the horizon and the viewer sees an image of the sky near the horizon.’
    • ‘Sparkling glass goblets and mugs refracted the light just as the silver reflected it.’
    • ‘Ideally we would like to refract the shadow ray too, but mathematically this is a much more difficult problem to solve.’
    • ‘A light ray is refracted when it passes from one medium to another at an angle and its speed changes.’
    • ‘Color is important: one sees the reds, tans and browns of skin color, the blue of water and the wavy white lines of light refracted through the water.’
    • ‘The image passes through the lens, which further refracts the light through its anterior and posterior curvatures.’
    • ‘The cornea and the crystalline lens refract light that enters the eye.’
    • ‘Metamaterial research is an emerging field that uses manmade substances to alter the way materials refract light or electromagnetic radiation.’
    • ‘In De Natura Locorum he gives a diagram which shows light being refracted by a spherical glass container full of water.’
    • ‘The regional variation of ocean depth acts as a lens to refract the waves, just as a lens refracts light.’
    1. 1.1 Measure the focusing characteristics of (an eye) or of the eyes of (someone)

Origin

Early 17th century: from Latin refract- broken up from the verb refringere, from re- back + frangere to break.

Pronunciation:

refract

/rəˈfrakt/