huminn.
/ˈhjuːmɪn/ Chemistry.
A neutral substance existing, according to Mulder, in black humus.
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1844 Petzholdt Lect. Farmers Agric. Chem. 93 To this the name humine or humus coal has been applied.
1869 E. A. Parkes Man. Pract. Hygiene (ed. 3) 20 The organic vegetable matter consists of humin and ulmin, and of acids derived from humus.
1886 New Sydenham Soc. Lexicon Humin,..the material in turf which is neither acid nor alkaline.
This entry has not yet been fully updated (first published 1899; most recently modified version published online June 2018).
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n.1844