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