nonhumus

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English

Etymology

From non- +‎ humus.

Noun

nonhumus (uncountable)

  1. That which is not humus (certain organic compounds in soil).
    • 1964, Proceedings of the Annual Biology Colloquium, volume 25, page 59:
      However, since there is no clear-cut distinction between humus and nonhumus, the term humus will be used interchangeably with soil organic matter for the purposes of this discussion.