noun
: gypsum or gypsiferous rock ground fine for use as a fertilizer and for correcting a puddled soil condition caused by the presence of sodium and potassium carbonates
noun
: gypsum or gypsiferous rock ground fine for use as a fertilizer and for correcting a puddled soil condition caused by the presence of sodium and potassium carbonates
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012