冷光lěngguāng 1.指荧光和磷光,因为这种光线所含的热量极少,所以叫冷光。{cold light; light not accompanied by the heat of combustion or incandescence, such as fluorescent light and phosphorescent light} 2.指冷酷严峻的目光{cold and stern look}: 眼里闪烁着逼人的～。{His eyes glistened with a threatening look.}