curdling vs natural process

curdling and natural process both are nouns.

Word	Noun	Adjective	Verb	Adverb
curdling	Yes	No	No	No
natural process	Yes	No	No	No

As nouns, natural process is a hypernym of curdling; that is, natural process is a word with a broader meaning than curdling:

curdling: the process of forming semisolid lumps in a liquid
natural process: a process existing in or produced by nature (rather than by the intent of human beings)

Other hypernyms of curdling include action, activity, natural action.

curdling (noun)	natural process (noun)
the process of forming semisolid lumps in a liquid	a process existing in or produced by nature (rather than by the intent of human beings)