/ Dictionary / Index P plane polarization: Meaning and Definition of Find definitions for: plane' polariza'tion Pronunciation: (plān'pō'lu-rīzd"), [key] — Optics. Optics. polarization of light in which the vibrations are confined to a single plane, that of the wave front. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plane of incidence planer Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language