compost heap(redirected from compost heaps)
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Related to compost heaps: compost pile
compost heapa pile of vegetable material which is allowed to break down through decomposition by microorganisms, and is subsequently used to improve the fertility of garden soils.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005