/ Dictionary / Index R Rayleigh scattering: Meaning and Definition of Find definitions for: Ray'leigh scat"tering Pronunciation: [key] — Optics. 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. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rayleigh disk Rayleigh wave Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language