Found 2 items, similar to apochromatic.
English → English (WordNet) Definition: apochromatic apochromatic adj : corrected for both chromatic and spherical aberration; “an apochromatic lens”
English → English (gcide) Definition: Apochromatic Apochromatic \Ap`o*chro*mat"ic\, a. [Pref. apo- + chromatic.] (Optics) Free from chromatic and spherical aberration; -- said esp. of a lens in which rays of three or more colors are brought to the same focus, the degree of achromatism thus obtained being more complete than where two rays only are thus focused, as in the ordinary achromatic objective. -- Ap`o*chro"ma*tism, n. [Webster 1913 Suppl.]