diffraction

noun

dif·​frac·​tion di-ˈfrak-shən How to pronounce diffraction (audio)
: a modification which light undergoes especially in passing by the edges of opaque bodies or through narrow openings and in which the rays appear to be deflected
also : a similar modification of other waves (such as sound waves) or of moving particles (such as electrons)

Examples of diffraction in a Sentence

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.
In 1937, Clinton Davisson was awarded the Nobel Prize in Physics for his discovery of electron diffraction in what became known as the Davisson-Germer experiment. Michael Posner, Forbes, 11 Oct. 2024 The bright spot of gold at the center is a galaxy, with diffraction spikes captured by the Kitt Peak National Observatory in Arizona. Carlyn Kranking, Smithsonian Magazine, 23 July 2024 Orion works by overlaying virtual information over a user’s view by using light diffraction to create holographic projections in their field of view. Esat Dedezade, Forbes, 26 Sep. 2024 Zooming in on bright cosmic lights The team was intrigued when Hubble picked up on three optical diffraction spikes in a concentrated region of the MCG-03-34-64 galaxy. Ashley Strickland, CNN, 10 Sep. 2024 See all Example Sentences for diffraction 

Word History

Etymology

borrowed from New Latin diffrāctiōn-, diffrāctiō (Medieval Latin, "action of breaking in pieces"), from Latin diffrag-, variant stem of diffringere, diffrangere "to break up, break apart, shatter" (from dif-, assimilated form of dis- dis- + frangere "to break") + -tiōn-, -tiō, suffix of verbal action — more at break entry 1

First Known Use

1672, in the meaning defined above

Time Traveler
The first known use of diffraction was in 1672

Dictionary Entries Near diffraction

Cite this Entry

“Diffraction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diffraction. Accessed 22 Nov. 2024.

Kids Definition

diffraction

noun
dif·​frac·​tion dif-ˈrak-shən How to pronounce diffraction (audio)
: the bending or spreading of a beam of light especially when passing through a narrow opening or by the edge of an object
also : similar changes in other waves (as sound waves)

Medical Definition

diffraction

noun
dif·​frac·​tion dif-ˈrak-shən How to pronounce diffraction (audio)
: a modification which light undergoes in passing by the edges of opaque bodies or through narrow slits or in being reflected from ruled surfaces and in which the rays appear to be deflected and to produce fringes of parallel light and dark or colored bands
also : a similar modification of other waves (as sound waves)

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