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toluidine |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Toluidine \To*lu"i*dine\, n. (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. Note: It is used in the aniline dye industry, and constitutes the essential nucleus or radical of those dyes.