Toluene n. (Chem.) A hydrocarbon, C6H5.CH3, of the aromatic series, homologous with benzene, and obtained as a light mobile colorless liquid, by distilling tolu balsam, coal tar, etc.; called also methyl benzene, phenyl methane, etc.
... way the cresol first breaks down to toluene in the presence of the carbon, and this in turn is broken down ... — Scientific American Supplement, No. 794, March 21, 1891 • Various
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