/ Dictionary / Index A achromate: Meaning and Definition of Find definitions for: ach•ro•mate Pronunciation: (ak'ru-māt"), [key] — n. Ophthalm. a person unable to perceive color. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. achromat achromatic Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language