pernitric acid

noun

per·​nitric acid

¦pər+…-

: an explosive acid HNO₄ held to be obtained as a liquid or in the form of salts (as by oxidation of nitrogen pentoxide with anhydrous hydrogen peroxide)

called also peroxynitric acid

—not used systematically

Word History

Etymology

International Scientific Vocabulary per- + nitric

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