par·​kin·​son·​ism ˈpär-kən-sə-ˌni-zəm How to pronounce parkinsonism (audio)
: a neurological disorder resembling Parkinson's disease

Example Sentences

Recent Examples on the Web Those cognitive symptoms develop within one year of parkinsonism, or the types of movement changes seen in Parkinson’s disease. Evan Macdonald, cleveland, 29 July 2021 Working in cultures of brain cells, the scientists corrected a protein imbalance that causes frontotemporal dementia with parkinsonism. Bradley J. Fikes,, 15 Mar. 2018 Espay has written a paper questioning whether most parkinsonism is related to vascular disease. Carla K. Johnson, Orange County Register, 18 Jan. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'parkinsonism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1923, in the meaning defined at sense 1

Time Traveler
The first known use of parkinsonism was in 1923

Dictionary Entries Near parkinsonism

Cite this Entry

“Parkinsonism.” Dictionary, Merriam-Webster, Accessed 9 Dec. 2022.

Medical Definition


par·​kin·​son·​ism ˈpär-kən-sə-ˌniz-əm How to pronounce parkinsonism (audio)
variants or Parkinsonism
: any of several neurological disorders that are characterized by symptoms (such as muscle rigidity, slowness of movement, and impaired balance) similar to those of Parkinson's disease but have an attributable cause (such as drugs, toxins, brain injury, infection, or neurodegenerative disease) resulting in low levels or blocked activity of dopamine

called also parkinsonian syndrome, Parkinson's syndrome

More from Merriam-Webster on parkinsonism

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