a. [ Iso- + chromatic. ] (Opt.) Having the same color; connecting parts having the same color, as lines drawn through certain points in experiments on the chromatic effects of polarized light in crystals. [ 1913 Webster ]
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.]
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.]
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