compost heap
variants: or chiefly US
compost pile
Definition of compost heap
: a pile of plant materials that are allowed to decay to create compost
From the M-W Editors
Word by Word Definitions
compostplay
: a mixture that consists largely of decayed organic matter and is used for fertilizing and conditioning land
: mixture, compound
: to convert (a material, such as plant debris) to compost
See the full definition of compost
heapplay
: a collection of things thrown one on another : pile
: a great number or large quantity : lot
: to throw or lay in a heap : pile or collect in great quantity
: to form or round into a heap
: to form a heap on : load heavily
See the full definition of heap
Seen and Heard
What made you want to look up compost heap? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!