/ Dictionary / Index A additive process: Meaning and Definition of Find definitions for: ad'ditive proc"ess Pronunciation: [key] a process of color photography in which the colors are formed by the combination of red, green, and blue-violet. Cf. subtractive process. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. additive inverse additory Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language