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2015-03-21 19:16:23
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Color blindness, or color vision deficiency, is the inability or *decreased ability to see color, or perceive color differences, under normal lighting conditions.
http://en.wikipedia.org/wiki/Color_blindness
위키피디아 정의로보면 color weakness를 포함한 광범위한 표현이 color blindness인 듯하네요