Dictionary
potas'sium perman'ganate
Chem.
a very dark purple, crystalline, water-soluble solid, KMnO
4, used chiefly as an oxidizing agent, disinfectant, laboratory reagent, and in medicine as an astringent and antiseptic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.