fluosulfonic acid

noun

fluo·​sulfonic acid

"+…-

: a fuming corrosive liquid acid FSO₃H that has an irritating odor, that is made by treating hydrogen fluoride with sulfur trioxide, and that is used chiefly as a catalyst in alkylation and polymerization reactions and as a reagent in organic synthesis

Word History

Etymology

International Scientific Vocabulary fluo- + 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!