Breadcrumb Home > Dictionary > Index C chroma key: Meaning and Definition of Find definitions for: chro'ma key" Pronunciation: [key] — Television. Television. an electronic special-effects system for combining a desired background with live foreground action. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chromaffin chromat- TrendingHere are the facts and trivia that people are buzzing about. Did Birds Evolve from Dinosaurs? The Twelve Dancing Princesses Current Events This Week: January 2023 African Americans by the Numbers Andersen's Fairy Tales: Contents The Celtic Twilight: A Teller of Tales ✖ Related Content Daily Word Quiz: limpid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language