refract

verb

re·​fract ri-ˈfrakt How to pronounce refract (audio)
refracted; refracting; refracts

transitive verb

1
a
: to subject (something, such as a ray of light) to refraction
Between them, Kirchhoff and Bunsen developed the spectroscope, which uses a prism to refract light.Paul Strathern
b
: to alter or distort as if by refraction
"Nope" is his twist on the alien-invasion film as refracted through the prism of [filmmaker] David Lynch.Cary Darling
Too often Indian food, and later Chinese—then the two most favored and accepted of foreign cuisines—became refracted through the prism of British food.Nigella Lawson
2
: to determine the refracting power of
refract a lens

intransitive verb

: to be subjected to refraction
The head of the figure is often surrounded by rings of coloured light caused by light diffraction. Like with a rainbow, this is caused by light refracting through tiny droplets of water in the air.Olivia Jones

Examples of refract in a Sentence

Light is refracted when it hits water.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The oil-free cream formula is anchored by spherical particles that absorb and refract light to blur dark spots, redness, and uneven texture without emphasizing the lines and pores that heavier concealers tend to magnify. Jailynn Taylor, Allure, 13 June 2026 On the other side, Lizzo’s fame, refracted through Lizzo’s sound, has become an unflattering reflection of liberal unseriousness in the face of such hostility. Lauren Michele Jackson, New Yorker, 11 June 2026 The demolition of McKim Mead and White’s masterpiece unleashed the preservation movement and a multigenerational tide of nostalgia, which should rightly get refracted into any new design. Justin Davidson, Curbed, 8 June 2026 Then again in the streaming era, as a cold case refracted through decades of procedural controversy and public obsession. Kate Casey, Vanity Fair, 2 June 2026 See All Example Sentences for refract

Word History

Etymology

Latin refractus, past participle of refringere to break open, break up, from re- + frangere to break — more at break

First Known Use

1563, in the meaning defined at sense 1a

Time Traveler
The first known use of refract was in 1563

Browse Nearby Words

Cite this Entry

“Refract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/refract. Accessed 17 Jun. 2026.

Kids Definition

refract

verb
re·​fract ri-ˈfrakt How to pronounce refract (audio)
: to cause to go through refraction

Medical Definition

refract

transitive verb
re·​fract ri-ˈfrakt How to pronounce refract (audio)
1
: to subject (as a ray of light) to refraction
2
: to determine the refracting power of or abnormality of refraction in (as an eye or a lens)

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