cyano radical vs chemical group

cyano radical and chemical group both are nouns.

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

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

cyano radical: the monovalent group -CN in a chemical compound
chemical group: (chemistry) two or more atoms bound together as a single unit and forming part of a molecule

Other hypernyms of cyano radical include group, radical.

cyano radical (noun)	chemical group (noun)
the monovalent group -CN in a chemical compound	(chemistry) two or more atoms bound together as a single unit and forming part of a molecule