Meaning of antimony pentoxide

an'timony pent•ox'ide

Pronunciation: (pen-tok'sīd), [key]
— Chem. Chem.
  1. a white or yellowish, water-insoluble powder, SbO, used chiefly in the synthesis of antimonates. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.