Definitions for xylidineˈzaɪ lɪˌdin, -dɪn, ˈzɪl ɪ-
Random House Webster's College Dictionary
xy•li•dineˈzaɪ lɪˌdin, -dɪn, ˈzɪl ɪ-(n.)
any of six xylene-derived isomeric compounds that have the formula C8H11N and resemble aniline: used in dye manufacture.
an oily liquid consisting of a mixture of certain of these compounds, used commercially in making dyes.
Origin of xylidine:
1840–50; xyl (ene ) + -idine
Any of six isomeric aromatic amines (CH)CHNH derived from the xylenes
any one of six metameric hydrocarbons, (CH3)2.C6H3.NH2, resembling aniline, and related to xylene. They are liquids, or easily fusible crystalline substances, of which three are derived from metaxylene, two from orthoxylene, and one from paraxylene. They are called the amido xylenes