indigodisulfonic acid

in·​di·​go·​disulfonic acid

Definition of indigodisulfonic acid

: a water-soluble disulfonic acid C16H8N2O2(SO3H)2 obtained by treating indigo with concentrated sulfuric acid

called also indigo extract, 5,5′-indigotindisulfonic 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.

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!

History and Etymology for indigodisulfonic acid

indigodisulfonic International Scientific Vocabulary indigo + disulfonic

Keep scrolling for more

Comments on indigodisulfonic acid

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


concealment of treason or felony

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
True or False

Test your knowledge - and maybe learn something along the way.

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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