plural of scrap heap

plural of dung heap

plural of compost heap

plural of ant-heap

plural of dung-heap

plural of spoil heap

Third-person singular simple present indicative form of heap up

A heap formed of spoil (material discarded during mining or excavation). / The place where spoil is dumped.

A mound of animal droppings for agricultural use.

A man-made mound or heap formed with the waste material (slag) as a by-product of coal mining. Can also refer to the waste by-product from a foundry or furnace, formed into such a mound.