Dictionary
ar'senic disul'fide
Chem.
an orange-red, water-insoluble, poisonous powder, As
4S
4, As
2S
2, or AsS, used chiefly in the manufacture of fireworks. Also called
ar'senic mon•o•sul'fide Pronunciation: (mon"u-sul'fīd). [key]Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.