Meaning of sodium bromide

so'dium bro'mide

Pronunciation: [key]
— Chem. Chem.
  1. a white, crystalline, hygroscopic, water-soluble solid, NaBr, used chiefly in photography as a developer, and in medicine as a sedative.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.