dithionous acid

noun

di·​thi·​o·​nous acid

(ˈ)dī¦thīənəs-

: hydrosulfurous acid

—used in the nomenclature adopted by the International Union of Pure and Applied Chemistry

Word History

Etymology

di- + thion- + -ous

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now