triphosphoric acid

noun

tri·​phosphoric acid

¦trī+…-

: a polyphosphoric acid H₅P₃O₁₀ that is a partial anhydride of three molecules of orthophosphoric acid, is capable of hydrolysis into orthophosphoric acid and pyrophosphoric acid, and is known chiefly in the form of salts and esters

Word History

Etymology

tri- + phosphoric

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