acylation vs chemical action

acylation and chemical action both are nouns.

Word	Noun	Adjective	Verb	Adverb
acylation	Yes	No	No	No
chemical action	Yes	No	No	No

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

acylation: the process of introducing an acyl group into a compound
chemical action: (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved

Other hypernyms of acylation include chemical change, chemical process.

acylation (noun)	chemical action (noun)
the process of introducing an acyl group into a compound	(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved