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单词 toluene
释义

WordReference Random House Unabridged Dictionary of American English © 2024
tol•u•ene  (tolyo̅o̅ ēn′),USA pronunciation n. [Chem.]
  1. a colorless, water-insoluble, flammable liquid, C7H8, having a benzenelike odor, obtained chiefly from coal tar and petroleum: used as a solvent in the manufacture of benzoic acid, benzaldehyde, TNT, and other organic compounds. Also called methylbenzene, phenylmethane.
  • tolu + -ene 1870–75

Collins Concise English Dictionary © HarperCollins Publishers::
toluene /ˈtɒljʊˌiːn/ n
  1. a colourless volatile flammable liquid with an odour resembling that of benzene, obtained from petroleum and coal tar and used as a solvent and in the manufacture of many organic chemicals. Formula: C6H5CH3
Etymology: 19th Century: from tolu + -ene, since it was previously obtained from tolu
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