chlorosulfonic acid

noun

chlo·​ro·​sulfonic acid

variants or less commonly chlorsulfonic acid

¦klōr,

-ȯr+

: a colorless fuming corrosive liquid ClSO₃H made usually by reaction of gaseous hydrogen chloride with sulfur trioxide and used chiefly in organic synthesis (as of sulfa drugs, saccharin, and sulfonic acids)

Word History

Etymology

chlor- + sulfonic

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!