Definition of zinc hydrosulfite
: a crystallizable salt ZnS2O4 made by addition of sulfur dioxide to a warm aqueous slurry of zinc dust (as in the manufacture of sodium hydrosulfite) and used as a bleach; zinc dithionite —not used systematically
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up zinc hydrosulfite? Please tell us where you read or heard it (including the quote, if possible).