meaning of lampblack
1. The fine impalpable soot obtained from the smoke of carbonaceous substances which have been only partly burnt, as in the flame of a smoking lamp. It consists of finely divided carbon, with sometimes a very small proportion of various impurities. It is used as an ingredient of printers ink, and various black pigments and cements.
2. a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
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