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单词 color blindness
释义

WordReference Random House Unabridged Dictionary of American English © 2024
color blind′ness, 
    1. Ophthalmologyinability to distinguish one or several chromatic colors, independent of the capacity for distinguishing light and shade.
    2. Ophthalmologycomplete inability to distinguish colors of the spectrum, with all objects appearing as shades of gray, black, and white, varying only as to lightness and darkness;
      achromatopsia.
    • 1835–45

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