polygenic disorder vs polygenic disease

polygenic disorder and polygenic disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
polygenic disorder	Yes	No	No	No
polygenic disease	Yes	No	No	No

As nouns, polygenic disorder and polygenic disease are synonyms defined as:

polygenic disorder and polygenic disease: an inherited disease controlled by several genes at once

polygenic disorder (noun)	polygenic disease (noun)
an inherited disease controlled by several genes at once	an inherited disease controlled by several genes at once