详细解释:【医】 二色性; 二色视, 二色性色盲
英语解释：
名词 dichromasy:
a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision)同义词：dichromacy, dichromatism, dichromatopsia, dichromia