noun
: a photographic plate usually slow in speed having the characteristics of high contrast and very fine grain and used chiefly in reproducing line drawings or in photomechanical processing
noun
: a photographic plate usually slow in speed having the characteristics of high contrast and very fine grain and used chiefly in reproducing line drawings or in photomechanical processing
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012