noun
Usage: usually capitalized N
Etymology: after Sir Isaac Newton
: a disk divided into sectors of proper relative dimensions bearing the different colors of the spectrum so that fusion of the colors by rotation gives a white or gray
noun
Usage: usually capitalized N
Etymology: after Sir Isaac Newton
: a disk divided into sectors of proper relative dimensions bearing the different colors of the spectrum so that fusion of the colors by rotation gives a white or gray
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012