taphole
/ˈtæfˌhoʊl/
noun
- A hole or opening in a furnace, kiln, or container through which molten metal or slag is drained.
- A clogged taphole can cause dangerous pressure buildup in the furnace.
- The worker carefully opened the taphole to release the molten iron.
- They used a long rod to clear the taphole before tapping the furnace.
Synonyms