Definition of "mulch" []

• A protective covering, usually of organic matter such as leaves, straw, or peat, placed around plants to prevent the evaporation of moisture, the freezing of roots, and the growth of weeds. (noun)
• To cover or surround with mulch. (verb-transitive)
• Half-rotten vegetable matter, peat, etc, used to prevent soil erosion or enrich the soil (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• To cover (the surface of land) with mulch (verb)

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• "The rubber mulch is far better than the grass in the ground."
• "Incompletely extinguished cigarettes may smolder in mulch, leaves or potting soil until a breeze causes ignition, Teevan said."
• "Whilst my boys were having a good ole 'time up on the roof, I was doing what I do best - unloading mulch from the WTMC."