mulch

mulch is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.Half-rotten straw, or any like substance strewn on the ground, as over the roots of plants, to protect from heat, drought, etc., and to preserve moisture.
  2. 2.To cover or dress with mulch.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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