Meaning of tolidine

tol•i•dine

Pronunciation: (tol'i-dēn", -din), [key]
— n. Chem.
  1. any of several isomeric derivatives of biphenyl containing two methyl and two amino groups, esp. the ortho isomer that is used as a reagent and in the preparation of dyes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.