Chem.
an allotropic form of selenium occurring as a black, amorphous, water-insoluble, light-sensitive powder: used chiefly in photoelectric cells.
Chem.
an allotropic form of selenium occurring as a black, amorphous, water-insoluble, light-sensitive powder: used chiefly in photoelectric cells.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012