Meaning of gein | Babel Free

Definitions

Humic acid.

dated, uncountable

Examples

“Hence, a most interesting conclusion—without salts and gein we have no vegetable production. The gein in solution is essential to fruit, and yet, without the salts, the insolubility of gein would leave the soil barren.”

“The humic acid and other similar acids (ulmic, geïn, &c.) have a very strong affinity for ammonia, which itself is essential to the nourishment of forest growth, as plants have only a limited power of assimilating the free nitrogen of the air.”

“Thus with a free supply of air the residue is mainly humin; with less air it is ulmin; and when air is excluded it is gein.”

CEFR level