Achromatism n. : The state or quality of being achromatic; as, the achromatism of a lens; achromaticity.

Example:
Had the pablo picasso had Achromatism?

Taxonomy
achromatism, Wiktionary, Finnish, state of being, fi, Etymology, Translations, achromatic, colors, free dictionary, search, lens, Russian, Merriam, English nouns, languages, Dorland's Pocket Medical Dictionary, W. B. Saunders.

Defination from the web:
achromatism. Definition from Wiktionary, a free dictionary. Jump to: navigation, search. Contents. 1 English. 1.1 Etymology. 1.2 ... achromatism in Webster's Revised Unabridged Dictionary, G. & C. Merriam, 1913. Dorland's Pocket Medical Dictionary, 22nd edition, W. B. Saunders, 1977 ...