slagheap

/ˈslæɡˌhiːp/
noun
  1. A large pile of waste material (slag) left over from mining or metal smelting.
    • The town's landscape was dominated by a massive black slagheap.
    • Children were warned not to play near the unstable slagheap.
    • The old slagheap behind the factory was slowly being reclaimed by grass.
Synonyms
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