A lighted coal left smothered in embers overnight, about which kindling wood is gathered in the morning.

Coal that burns without a flame; anthracite coal.

Bituminous coal, as distinguished from hard coal (anthracite).

(UK, Scotland, dated) cannel coal

bituminous coal

A bituminous or hydrogenous coal yielding a high proportion of volatile material, and therefore available for the manufacture of illuminating gas.

A bituminous coal which softens and becomes pasty or semiviscid when heated. On increasing the heat, the volatile products are driven off, and a coherent, grayish-black, cellular mass of coke is left.

(mining) mineral coal

coal coming from the ground, as opposed to charcoal / Silky fibrous layers of charcoal, interlaminated in beds of ordinary bituminous coal.

Anthracite, as distinguished from bituminous soft coal.