炭たん殻がらMeanings1nouncoal cinders; cindersRefers to the residue left after coal is burned; often used in contexts like cleaning out a stove or furnace. The cross-reference 石炭殻 is a synonym.See also: 石炭殻ストーブの炭たん殻がらを捨すてる。I throw away the coal cinders from the stove.炭たん殻がらが道みちに散ちらばっていた。Coal cinders were scattered on the road.