nitrogen pentoxide
noun
Definition of nitrogen pentoxide
: a white crystalline unstable compound N2O5 obtainable by oxidation of nitrogen dioxide with ozone or by dehydration of nitric acid and yielding nitric acid on combination with water with evolution of much heat; di-nitrogen pentoxide —called also nitric anhydride, nitrogen (V) oxide
From the M-W Editors
There's more!
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!
Seen and Heard
What made you want to look up nitrogen pentoxide? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!