/ Dictionary / Index S surface of projection: Meaning and Definition of Find definitions for: sur'face of projec'tion Pronunciation: [key] the surface upon which an image or a set of points is projected. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. surface of light and shade surface of revolution Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language