nonhumus

noun

nonhumus

noun

Etymology From non- + humus.

1

That which is not humus (certain organic compounds in soil).

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.1964, Proceedings of the Annual Biology Colloquium, volume 25, page 59:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.