- a white, amorphous, water-insoluble powder, SnO2, used chiefly in the manufacture of ceramic glazes and glass, and of polishing powders for metal, glass, and marble.
Origin of stannic oxide
First recorded in 1840–50
Also called tin ash.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018