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achromatization

noun
achro·​ma·​ti·​za·​tion | \ ˌā-ˌkrō-mə-tə-ˈzā-shən, (ˌ)a-, -ˌtī-ˈzā-\
plural -s

Definition of achromatization

: the act or process of achromatizing

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First Known Use of achromatization

1829, in the meaning defined above

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The first known use of achromatization was in 1829

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