Definition of "hydrosulfite" []

• A salt of hyposulfurous acid. (noun)
• See sodium hydrosulfite. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "These contain sodium hydrosulfite, a strong bleaching agent."
• "Color removers, manufactured by dye manufacturers, contain sodium hydrosulfite Na2S2O4—also called “sodium hyposulfite”."
• "Chlor Alkali Products manufactures chlorine and caustic soda, sodium hydrosulfite, hydrochloric acid, hydrogen, potassium hydroxide and bleach products."