ammonium thiosulfate: Meaning and Definition of

ammo'nium thiosul'fate

Pronunciation: [key]
— Chem. Chem.
  1. a white, crystalline, water-soluble solid, (NH)SO, used chiefly in the manufacture of cleaning compounds for alloys having a tin or lead base.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.