from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless solution of sulfur dioxide in water, H2SO3, characterized by a suffocating sulfurous odor, used as a bleaching agent, preservative, and disinfectant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The weak acid, H2SO3, present in a solution of sulfur dioxide in water; it is a reducing agent and mild bleach.
Sorry, no etymologies found.