/ Dictionary / Index C Compton effect: Meaning and Definition of Find definitions for: Comp'ton effect" Pronunciation: (komp'tun-de-bī'). [key] — Physics. Physics. the increase in wavelength of monochromatic, electromagnetic radiation, as a beam of photons or x-rays, when it is scattered by particles whose size is small compared to the wavelength of the radiation. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Compton comptroller Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language