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
Word origin
C19: from tolu(ene) + -ide + -ine2
toluidine in American English
(toʊˈluəˌdin; təˈluədɪn)
noun
any of three isomeric amino derivatives, CH3C6H4NH2, of toluene, used in organic synthesis, in dyes, as a test reagent, etc.