a fine siliceous earth composed chiefly of the cell walls of diatoms: used in filtration, as an abrasive, etc. Also called diatomite /duy at"euh muyt'/ , kieselguhr .
[ 1880-85 ]
DIATOMACEOUS EARTH
Meaning of DIATOMACEOUS EARTH in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012