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ulmin |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Ulmin \Ul"min\, n. [L. ulmus an elm: cf F. ulmine.] (Chem.) A brown amorphous substance found in decaying vegetation. Cf {Humin}. [Formerly written {ulmine}.] From Webster's Revised Unabridged Dictionary (1913) [web1913]: Humin \Hu"min\, n. [L. humus the earth, ground.] (Chem.) A bitter, brownish yellow, amorphous substance, extracted from vegetable mold, and also produced by the action of acids on certain sugars and carbohydrates; -- called also {humic acid}, {ulmin}, {gein}, {ulmic} or {geic acid}, etc
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