Rayleigh scattering

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noun Optics.

the scattering of light by particles that are very small in relation to the wavelength of the light, and in which the intensity of the scattered light varies inversely with the fourth power of the wavelength.

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THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?

Do you know the difference between everyday US and UK terminology? Test yourself with this quiz on words that differ across the Atlantic.

Question 1 of 7

In the UK, COTTON CANDY is more commonly known as…

candystring

candyfloss

candypuff

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Compare Mie scattering.

Origin of Rayleigh scattering

First recorded in 1935–40; named after J. W. S. Rayleigh

Words nearby Rayleigh scattering

ray flower, ray gun, Rayleigh, Rayleigh disc, Rayleigh disk, Rayleigh scattering, Rayleigh wave, rayless, raylet, Raymond, Raynaud's disease

British Dictionary definitions for Rayleigh scattering

Rayleigh scattering

noun

a process in which electromagnetic radiation is elastically deflected by particles of matter, without a change of frequency but with a phase change

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for Rayleigh scattering

Rayleigh scattering

The scattering of electromagnetic radiation by particles with dimensions much smaller than the wavelength of the radiation. The frequency of the radiation is not altered by this form of scattering, though the phase of the light is usually changed. Because the amount of Rayleigh scattering is greater at shorter frequencies, more scattering of the sun's rays by the Earth's atmosphere occurs on the blue end of the spectrum than at the red end, thus more blue light reaches the Earth, and the sky generally appears blue. Compare Raman effect. See also Compton effect.