Search Result for "humin": 
Wordnet 3.0

NOUN (1)

1. a black humic substance that is not soluble in water;


The Collaborative International Dictionary of English v.0.48:

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. [1913 Webster]
WordNet (r) 3.0 (2006):

humin n 1: a black humic substance that is not soluble in water