<chemistry> A bitter, brownish yellow, amorphous substance, extracted from vegetable mold, and also produced by the action of acids on certain sugars and carbohydrates.

Synonyms: humic acid, ulmin, gein, ulmic or geic acid, etc.

Origin: L. Humus the earth, ground.

(01 Mar 1998)

humidifier, humidity, humid tetter, humifuse < Prev | Next > humiri, humite, humma

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