Definify.com
Webster 1913 Edition
Toluidine
To-lu′i-dine
,Noun.
(Chem.)
Any one of three metameric amido derivatives of toluene analogous to aniline, and called respectively
orthtoluidine
, metatoluidine
, and paratoluidine
; especially, the commonest one, or paratoluidine
, which is obtained as a white crystalline substance. ☞ It is used in the aniline dye industry, and constitutes the essential nucleus or radical of those dyes.