from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A white crystalline or powdered compound, Na2SO3, used in preserving foods, silvering mirrors, developing photographs, and making dyes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The sodium salt of sulfurous acid, Na2SO3, used as a food preservative, in photography and in many industrial applications.
Sorry, no etymologies found.