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Webster 1913 Edition

Noun.

[

Tol

uic +

-yl

(Chem.)

The hydrocarbon radical,

CH3.C6H4

, regarded as characteristic of certain compounds of the aromatic series related to toluene;

as,

tolyl

carbinol

tolyl ‎(plural tolyls)

(organic chemistry) Any of the three isomeric univalent aromatic radicals derived from toluene