benzyl vs chemical group

benzyl and chemical group both are nouns.

Word	Noun	Adjective	Verb	Adverb
benzyl	Yes	No	No	No
chemical group	Yes	No	No	No

As nouns, chemical group is a hypernym of benzyl; that is, chemical group is a word with a broader meaning than benzyl:

benzyl: the univalent radical derived from toluene
chemical group: (chemistry) two or more atoms bound together as a single unit and forming part of a molecule

Other hypernyms of benzyl include group, radical.

benzyl (noun)	chemical group (noun)
the univalent radical derived from toluene	(chemistry) two or more atoms bound together as a single unit and forming part of a molecule