n. 油烟, 煤烟, 灰尘

[医] 油烟, 煤烟, 煤烟制颜料

[ noun ]
a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
<noun.substance>

Lampblack \Lamp"black`\, n. [Lamp + black.]
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.