Definition of nitrophenol
1 : a nitro derivative of phenol: such as a : a yellow crystalline compound O2NC6H4OH used chiefly in organic synthesis —called also ortho-nitrophenol b : a colorless to yellowish isomeric compound O2NC6H4OH used chiefly as an acid-base indicator, as a fungicide, and in organic synthesis —called also para-nitrophenol
2 usually nitro phenol : a nitro derivative of any of the class of phenols
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!
Origin and Etymology of nitrophenol
International Scientific Vocabulary nitr- + phenol
Seen and Heard
What made you want to look up nitrophenol? Please tell us where you read or heard it (including the quote, if possible).