1. apochromatic - Adjective
2. apochromatic - Adjective Satellite
corrected for both chromatic and spherical aberration
Source: WordNetan apochromatic lens Source: Internet
The best telescope objectives, and photographic objectives intended for three-color work, are also apochromatic, even if they do not possess quite the same quality of correction as microscope objectives do. Source: Internet
By combining more than two lenses of different composition, the degree of correction can be further increased, as seen in an apochromatic lens or apochromat. Source: Internet