a. | 1. | (Opt.) Free from color; transmitting light without decomposing it into its primary colors. | |||||||||
2. | (Biol.) Uncolored; not absorbing color from a fluid; - said of tissue.
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Adj. | 1. | achromatic - being of the achromatic color of maximum lightness; having little or no hue owing to reflection of almost all incident light; "as white as fresh snow"; "a bride's white dress" Synonyms: white |
2. | achromatic - being of the achromatic color of maximum darkness; having little or no hue owing to absorption of almost all incident light; "black leather jackets"; "as black as coal"; "rich black soil" Synonyms: black | |
3. | achromatic - having no hue Antonyms: chromatic - being or having or characterized by hue |