refract

verb

re·​fract ri-ˈfrakt 

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

Feminine Energy Porodina refracts feminine energy in all her subjects, whether casting Pitt as a psychedelic Ophelia for the cover of GQ, or capturing Ukrainian model Yura Romaniuk’s fluid beauty for Vogue Adria. — Joelle Diderich, Footwear News, 23 Sep. 2026

Day and night aren't exactly 12 hours long on the day of the equinox because the Earth's atmosphere refracts, or bends, light in an optical illusion that brings more daylight than there really is. — Dinah Voyles Pulver, USA Today, 22 Sep. 2026

In their offices, the sweeping staircase is hung with padded crimson velvet, and a colorful Venetian glass chandelier refracts rainbow light in a dining room lined and curtained in dazzling Cruella DeVil zebra stripes. — Hamish Bowles, Vogue, 20 Sep. 2026

His memories of his early years in Mid-City are refracted through the fog of weed clouds and the fish-eye lens of a VX1000 video camera. — Jeff Weiss, Los Angeles Times, 7 Sep. 2026

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

Rhymes for refract

• abstract
• attacked
• attract
• contact
• contract
• detract
• distract
• enact
• exact
• extract
• hijacked
• impact

Kids Definition

refract

verb

re·​fract ri-ˈfrakt 

: to cause to go through refraction

Medical Definition

refract

transitive verb

re·​fract ri-ˈfrakt 

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)