toluene noun. ['tɒljʊi:n] L19.
[from TOLU + -ENE.]
Chemistry. A colourless liquid cyclic hydrocarbon, C₆H₅CH₃, which is obtained from coal tar and petroleum and is used as a solvent and in the manufacture of many organic compounds. Also called methylbenzene, toluol.

■ toluic [tɒ'l(j)u:ɪk, 'tɒl-] adjective:

■ toluic acid, each of three crystalline isomeric cyclic acids, CH₃C₆H₄COOH, which are produced from toluene, cymene, or xylene; methylbenzoic acid: M19.

■ toluol noun = TOLUENE M19.

■ toluyl ['tɒl(j)ʊʌɪl, -u:ɪl] noun each of three isomeric cyclic radicals, CH₃C₆H₄CO, derived from a toluic acid M19.

■ toluylic adjective:

■ toluylic acid = toluic acid M19.

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