azido radical vs chemical group

azido radical and chemical group both are nouns.

Word	Noun	Adjective	Verb	Adverb
azido radical	Yes	No	No	No
chemical group	Yes	No	No	No

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

azido radical: the univalent group N3- derived from hydrazoic acid
chemical group: (chemistry) two or more atoms bound together as a single unit and forming part of a molecule

Other hypernyms of azido radical include group, radical.

azido radical (noun)	chemical group (noun)
the univalent group N3- derived from hydrazoic acid	(chemistry) two or more atoms bound together as a single unit and forming part of a molecule