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单词 toluidine
释义

WordReference Random House Unabridged Dictionary of American English © 2024
to•lu•i•dine  (tə lo̅o̅i dēn′, -din),USA pronunciation n. [Chem.]
  1. any of three isomeric amines having the formula C7H9N, derived from toluene: used in the dye and drug industries. Cf. metatoluidine, orthotoluidine, paratoluidine.
  • tolu(ene) + -id3 + -ine2 1840–50

Collins Concise English Dictionary © HarperCollins Publishers::
toluidine /tɒˈljuːɪˌdiːn/ n
  1. an amine derived from toluene existing in three isomeric forms; aminotoluene. The ortho- and meta- isomers are liquids and the para- isomer is a crystalline solid. All three are used in making dyes. Formula: C6H4CH3NH2
Etymology: 19th Century: from tolu( ene) + -ide + -ine²
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