hydrosulfurous acid

noun hy·dro·sulfurous acid \"+...-\

Definition of hydrosulfurous acid

  1. :  an unstable acid H2S2O4 known only in aqueous solution formed by reducing sulfurous acid or in the form of salts —not used scientifically —called also dithionous acid, hyposulfurous acid

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of hydrosulfurous acid

hydrosulfurous International Scientific Vocabulary hydr- + sulfurous

Seen and Heard

What made you want to look up hydrosulfurous acid? Please tell us where you read or heard it (including the quote, if possible).


to help become familiar with something

Get Word of the Day daily email!