Dictionary
tung'sten triox'ide
Chem.
a heavy, canary-yellow, water-insoluble powder, WO
3, used in the manufacture of tungstates. Also called
tung'sten ox'ide, tung'stic ac'id hydrox'ide, tung'stic anhy'dride. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.