ni·​tro·​ben·​zene ˌnī-trō-ˈben-ˌzēn How to pronounce nitrobenzene (audio)
: a poisonous yellow oily liquid C6H5NO2 with an almond odor that is used especially in chemical synthesis (as of aniline)

Example Sentences

Recent Examples on the Web An equipment seal failure allowed the release of 26 pounds of sulfuric acid,1 pound of nitrobenzene and 22 pounds of benzene to be released in both vapor and liquid form. Mark Schleifstein,, 3 Jan. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nitrobenzene.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


International Scientific Vocabulary

First Known Use

1852, in the meaning defined above

Time Traveler
The first known use of nitrobenzene was in 1852

Dictionary Entries Near nitrobenzene

Cite this Entry

“Nitrobenzene.” Dictionary, Merriam-Webster, Accessed 7 Dec. 2022.

Medical Definition


ni·​tro·​ben·​zene ˌnī-trō-ˈben-ˌzēn, -ben-ˈ How to pronounce nitrobenzene (audio)
: a poisonous yellow insoluble oil C6H5NO2 with an almond odor that is used especially as a solvent, as a mild oxidizing agent, and in making aniline

More from Merriam-Webster on nitrobenzene

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
Name That Thing

You know what it looks like… but what is it called?

Universal Daily Crossword

A daily challenge for crossword fanatics.