[n] a hot glowing or smouldering fragment of wood or coal left from a fire
coal
alluvion, alluvium, ash, brand, burning ember, cinder, clinker, coal, deposition, deposits, diluvium, draff, dregs, dross, feces, firebrand, froth, grounds, lees, live coal, loess, moraine, offscum, precipitate, precipitation, scoria, scum, sediment, sett