peptization vs chemical action

peptization and chemical action both are nouns.

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

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

peptization: the process of converting to a sol; bringing to a colloidal solution
chemical action: (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved

Other hypernyms of peptization include chemical change, chemical process.

peptization (noun)	chemical action (noun)
the process of converting to a sol; bringing to a colloidal solution	(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved