adj. Optics 1 that transmitts light without separating it into constituent colours (achromatic lens). 2 without colour (achromatic fringe). achromatically adv. achromaticity n. achromatism n.
[ F achromatique f. Gk akhromatos (as A-(1), CHROMATIC) ]
ACHROMATIC
Meaning of ACHROMATIC in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012