From Longman Dictionary of Contemporary Englishcarbon paperˈcarbon ˌpaper noun [countable, uncountable] BDthin paper with a blue or black substance on one side, that you put between sheets of paper when typing on a typewriter in order to make a copy onto the second sheet of paper
Examples from the Corpus
carbon paper• They use that magic carbon paper.• The flattened shape is transferred to a sheet of leather by mangling carbon paper between the two.• Books and papers were either remembered or copied, sometimes ten typed sheets at once, on carbon paper.• A final covering of aluminium foil or carbon paper reduces the risk of detection by X-ray machines.• A smell I had waited all day to smell-old and sweet, the carbon paper.• Carbonless paper coated with chemicals and dye which will produce copies without carbon paper.From Longman Business Dictionarycarbon paperˈcarbon ˌpaper noun [uncountable] thin paper with a blue or black substance on one side, that you put between sheets of paper when typing on a typewriter, in order to make a copy onto the second sheet of paper 