taphole
Usage examples of "taphole".
They both peered through a peephole into the furnace, did something to—Ada was explaining to a guest—the “slag hole” (different from the taphole, Daeman vaguely noticed) and then the young woman and the older man—soon to be a dead older man, Daeman thought cruelly—leaped from the cupola structure onto the sand and rushed over to look at the mold.