Alternative spelling of coal tar

(UK, idiomatic) Directly engaged in the operations of a business, rather than in a hands-off, managerial position.

An elevated railway track designed to allow material to fall freely between the rails onto the ground beneath. It is used to rapidly unload hoppers containing coal and other bulk materials.

plural of coal drop

lignite

(obsolete) Charcoal. / Small fragments of coal; slack.

Alternative spelling of seacoal

cannel

Alternative form of cannel coal

(mineralogy) A kind of brown lignite.