hydrosulfurous acid

noun

hy·​dro·​sulfurous acid
"+…-
: 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

Word History

Etymology

hydrosulfurous International Scientific Vocabulary hydr- + sulfurous

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.

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!

Dictionary Entries Near hydrosulfurous acid

Cite this Entry

“Hydrosulfurous acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrosulfurous%20acid. Accessed 26 Nov. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!