achromatic objective n.
An objective that is corrected for two colors chromatically and for one color spherically.
- Achromatic prism
a system of two or more prisms of different substances that deflects but does not disperse a beam of light.
- Achromatic vision
achromatic vision achromatic vision n. See achromatopsia.
to make ; deprive or free of color. verb (transitive) to make achromatic; to remove colour from