/ Dictionary / Index K Kerr effect: Meaning and Definition of Find definitions for: Kerr' effect" Pronunciation: [key] — Physics. Physics. the double refraction of light in certain substances, produced by an electric field. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Kerr cell kerria Related Content Daily Word Quiz: topography Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language