holonymy vs whole to part relation

holonymy and whole to part relation both are nouns.

Word	Noun	Adjective	Verb	Adverb
holonymy	Yes	No	No	No
whole to part relation	Yes	No	No	No

As nouns, holonymy and whole to part relation are synonyms defined as:

holonymy and whole to part relation: the semantic relation that holds between a whole and its parts

holonymy (noun)	whole to part relation (noun)
the semantic relation that holds between a whole and its parts	the semantic relation that holds between a whole and its parts