WordNet
zinc sulfate
n. a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc [syn: zinc sulphate, white vitriol, zinc vitriol]
Wikipedia
Zinc sulfate
Zinc sulfate is the inorganic compound with the formula Zn SO as well as any of three hydrates. It was historically known as "white vitriol". All of the various forms are colourless solids. The heptahydrate is commonly encountered.
It is on the WHO Model List of Essential Medicines, the most important medications needed in a basic health system.