Parkinson's disease vs shaking palsy

Parkinson's disease and shaking palsy both are nouns.

Word	Noun	Adjective	Verb	Adverb
Parkinson's disease	Yes	No	No	No
shaking palsy	Yes	No	No	No

As nouns, Parkinson's disease and shaking palsy are synonyms defined as:

Parkinson's disease and shaking palsy: a degenerative disorder of the central nervous system characterized by tremor and impaired muscular coordination

Other synonyms of Parkinson's disease include paralysis agitans, Parkinson's, Parkinson's syndrome, Parkinsonism.

Parkinson's disease (noun)	shaking palsy (noun)
a degenerative disorder of the central nervous system characterized by tremor and impaired muscular coordination	a degenerative disorder of the central nervous system characterized by tremor and impaired muscular coordination