composting Definition

compost
noun

1. A mixture of decomposed organic substances such as rotting vegetable matter, etc, which is used to enrich soil and nourish plants. Also as adj.

Example: compost heap

verb composted, composting

1. To treat with compost.
2. To convert (decaying organic matter) into compost.

Etymology: 14c: from Latin composita, from componere to put together.