lampblack
/ˈlæmpˌblæk/Definitions
1. noun
a type of very fine black powder produced by burning oil or fat in the absence of air, used in painting and as a pigment.
“The artist mixed lampblack with linseed oil to create a smooth, dark paint.”
2. noun
a black pigment, especially one made from lampblack.
“The painter used lampblack to give the portrait a rich, intense color.”
3. verb
to make or become black, especially by being exposed to smoke or soot.
“The chimney swept the soot from the lampblack-stained stones.”