• WordNet 3.6
    • n humin a black humic substance that is not soluble in water
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Webster's Revised Unabridged Dictionary
    • n Humin (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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Century Dictionary and Cyclopedia
    • n humin A neutral indifferent substance said by Mulder to exist in black humus. It may also be prepared from sugar or starch by the action of a mineral acid. Its composition and properties have not as yet been fully investigated.
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Webster's Revised Unabridged Dictionary
L. humus, the earth, ground


In literature:

Sum of the hiest and most purest feelins whitch actoate the humin hart has bin trampt onto.
"The Complete Works of Artemus Ward" by Charles Farrar Browne (AKA Artemus Ward)
They are formed when the alkalies or their carbonates act on ulmin and humin, or upon ulmates or humates of lime, iron, etc.
"Peat and its Uses as Fertilizer and Fuel" by Samuel William Johnson
An' white folks say dat Grumbo's got no humin feelin's.
"Burl" by Morrison Heady
For three days the battle raged until, late in the afternoon of February 2, 1915, the Germans took Humin by storm.
"The Story of the Great War, Volume II (of VIII)" by Various
When a half civilized humin critter wants enny thing, he wants it just az bad az a bear duz, and generally takes it in the same way.
"Josh Billings on Ice" by Henry Wheeler Shaw