1. Agric. a whitish layer of mineral salts, esp. sodium sulfate, sodium chloride, and magnesium sulfate, often occurring on top of soils where rainfall is low.
2. refined soda ash.
1. Agric. a whitish layer of mineral salts, esp. sodium sulfate, sodium chloride, and magnesium sulfate, often occurring on top of soils where rainfall is low.
2. refined soda ash.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012