achromatism
Definitions
The state or quality of being without color.
The property of a lens or optical system that prevents chromatic aberration by bringing different wavelengths of light to a common focus.
Examples
The optical engineer designed the lens system to achieve perfect achromatism, ensuring that all colors of light focus at the same point.
While the telescope provided a clear view of the stars, the lack of complete achromatism resulted in faint color fringing around the edges of the moon.