gein


From The Collaborative International Dictionary of English v.0.48:

gein \ge"in\ (j[=e]"[i^]n), n. [Gr. gh^ earth.] (Chem.)
   See Humin.
   [1913 Webster]
.

From 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]
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