com·post   (kŏm'pōst')    n.   A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients. A composition; a mixture. tr.v.   com·post·ed, com·post·ing, com·posts To fertilize with a mixture of decaying organic matter. To convert (vegetable matter) to compost. [Middle English compote, from Old French, mixture, compost, from Latin compositum, mixture, from neuter past participle of compōnere, to put together; see component.]

Compost

Com"post\ (?; 277), n.[OF. compost, fr. L. compositus, p. p. See Composite.]

1. A mixture; a compound. [R.]

A sad compost of more bitter than sweet. --Hammond.

2. (Agric.) A mixture for fertilizing land; esp., a composition of various substances (as muck, mold, lime, and stable manure) thoroughly mingled and decomposed, as in a compost heap.

And do not spread the compost on the weeds To make them ranker. --Shak.

compost 

compost   (kŏm'pōst')  Pronunciation Key  A mixture of decayed or decaying organic matter used to fertilize soil. Compost is usually made by gathering plant material, such as leaves, grass clippings, and vegetable peels, into a pile or bin and letting it decompose as a result of the action of aerobic bacteria, fungi, and other organisms.