HUMIC ACID


Meaning of HUMIC ACID in English

a brown, melanin-tinted mixture of polymers, found in lignite, peat, and soils, where it acts as a cation exchange agent: used in drilling fluids and inks.

[ 1835-45 ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .