Parkinson's disease

noun

Par·​kin·​son's disease ˈpär-kən-sənz- How to pronounce Parkinson's disease (audio)
variants or less commonly Parkinson disease or Parkinson's or Parkinson's syndrome
: a chronic progressive neurological disease chiefly of later life that is linked to decreased dopamine production in the substantia nigra and is marked especially by tremor of resting muscles, rigidity, slowness of movement, impaired balance, and a shuffling gait

called also paralysis agitans

Examples of Parkinson's disease in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There are two forms of Lewy body dementia: Dementia with Lewy bodies (DLB) and Parkinson's disease dementia. Anthony Robledo, USA Today, 12 July 2025 They're also used to relieve muscle stiffness in Parkinson's disease sufferers and even as a common sleep aid. New Atlas, 11 July 2025 The singer was later diagnosed with Parkinson's disease in 2019. Rachel Raposas, People.com, 10 July 2025 The event came after Osbourne stepped back from live performances due health issues including Parkinson's disease. Shania Russell, EW.com, 7 July 2025 See All Example Sentences for Parkinson's disease

Word History

Etymology

James Parkinson †1824 English physician

First Known Use

1877, in the meaning defined above

Time Traveler
The first known use of Parkinson's disease was in 1877

Browse Nearby Words

Cite this Entry

“Parkinson's disease.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Parkinson%27s%20disease. Accessed 21 Jul. 2025.

Kids Definition

Parkinson's disease

noun
Par·​kin·​son's disease ˈpär-kən-sənz- How to pronounce Parkinson's disease (audio)
: a disease chiefly of later life that tends to get steadily worse and is marked especially by stiff and trembling muscles, slowness of movement, and a shuffling way of walking

Medical Definition

Parkinson's disease

noun
Par·​kin·​son's disease ˈpär-kən-sənz- How to pronounce Parkinson's disease (audio)
variants also Parkinson disease
-sən-
or Parkinson's
: a chronic progressive neurological disease chiefly of later life that is linked to decreased dopamine production in the substantia nigra, is of unknown cause, and is marked especially by tremor of resting muscles, rigidity, slowness of movement, impaired balance, and a shuffling gait

called also paralysis agitans, parkinsonian syndrome, parkinsonism, Parkinson's syndrome

Last Updated: - Updated example sentences
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