/ Dictionary / Index M mulch: Meaning and Definition of Find definitions for: mulch Pronunciation: (mulch), [key] — n. a covering, as of straw, compost, or plastic sheeting, spread on the ground around plants to prevent excessive evaporation or erosion, enrich the soil, inhibit weed growth, etc. —v.t. to cover with mulch. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mulch (Thesaurus) mulberry family mulcher Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language