acyl group vs chemical group

acyl group and chemical group both are nouns.

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

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

acyl group: any group or radical of the form RCO- where R is an organic group
chemical group: (chemistry) two or more atoms bound together as a single unit and forming part of a molecule

Other hypernyms of acyl group include group, radical.

acyl group (noun)	chemical group (noun)
any group or radical of the form RCO- where R is an organic group	(chemistry) two or more atoms bound together as a single unit and forming part of a molecule