Source : Webster's Revised Unabridged Dictionary (1913)

Benzyl \Ben"zyl\, n. [Benzoic + -yl.] (Chem.)
   A compound radical, {C6H5.CH2}, related to toluene and
   benzoic acid; -- commonly used adjectively.

Source : WordNet®

benzyl
     n : the univalent radical derived from toluene [syn: {benzyl
         group}, {benzyl radical}]