nitrobenzene

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A colorless or yellowish poisonous oily liquid, C₆H₅NO₂, having the odor of almonds and used in the manufacture of aniline, insulating compounds, and polishes.

from The Century Dictionary.

• noun Same as nitrobenzol.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A yellow aromatic liquid (C6H5.NO2), produced by the action of nitric acid on benzene, and called from its odor imitation oil of bitter almonds, or essence of mirbane. It is used in perfumery, and is manufactured in large quantities in the preparation of aniline. Fornerly called also nitrobenzol.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry A nitro derivative of benzene, C6H5NO2, prepared by reacting benzene with a mixture of nitric and sulphuric acids; any of a series of such compounds having two or more nitro groups

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a poisonous oily water-soluble liquid used as a solvent and in the manufacture of aniline