The Collaborative International Dictionary
benzule
Benzoyl \Ben"zoyl\, n. [Benzoic + Gr. ? wood. See -yl.] (Chem.) A compound radical, C6H5.CO-; the base of benzoic acid, of the oil of bitter almonds, and of an extensive series of compounds. [Formerly written also benzule.]
Wiktionary
benzule
n. (context organic chemistry obsolete English) benzoyl