noun
: a flat transparent light filter composed of minute colored elements through which the exposure is made on a panchromatic emulsion layer and through which the image is viewed in the screen process of additive color photography
noun
: a flat transparent light filter composed of minute colored elements through which the exposure is made on a panchromatic emulsion layer and through which the image is viewed in the screen process of additive color photography
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012