/ Dictionary / Index A achromatopsia: Meaning and Definition of Find definitions for: a•chro•ma•top•si•a Pronunciation: (ā-krō"mu-top'sē-u), [key] — n. color blindness (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. achromatophilia achromatous Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language