/ Dictionary / Index A Amici prism: Meaning and Definition of Find definitions for: A•mi'ci prism" Pronunciation: (u-mē'chē), [key] — Optics. Optics. a compound prism that spreads out incident white light into a spectrum but produces no deviation of the central color of the dispersed beam. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. amice amicus Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language