Alzheimer's disease
noun
Alz·hei·mer's disease
ˈälts-ˌhī-mərz- 
ˈalts-
ˈȯlts-
ˈalts-
ˈȯlts-
variants
or less commonly Alzheimer disease
or Alzheimer's
: a degenerative brain disease of unknown cause that is the most common form of dementia, that usually starts in late middle age or in old age, that results in progressive memory loss, impaired thinking, disorientation, and changes in personality and mood, and that is marked histologically by the degeneration of brain neurons especially in the cerebral cortex and by the presence of neurofibrillary tangles and plaques containing beta-amyloid
Behavioral problems, such as mood swings and agitation, may also be a part of the progression of Alzheimer's disease.—
Allan Perel
Allan Perel… the ability to differentiate normal aging-related memory changes from the impairments associated with dementia, including Alzheimer disease …—C. Munro Cullum
C. Munro Cullum… researchers in California have created mice carrying the gene for beta-amyloid protein, the principal component of the plaques riddling the brains of people with Alzheimer's.—Charlene Crabb
Charlene CrabbNote: Alzheimer's is often used before another noun.
Alzheimer's patients
—abbreviation AD
Examples of Alzheimer's disease in a Sentence
Recent Examples on the Web
The panel ultimately voted unanimously last month in favor of the drug's benefits outweighing its risks, for patients in the early stages of Alzheimer's disease.
—Alexander Tin, CBS News, 2 July 2024
These compounds have neuroprotective effects and may reduce cellular damage and inflammation in the neurological system, protecting against conditions like Alzheimer's disease and depression.
—Jillian Kubala, Health, 2 July 2024
The Alzheimer's treatment will be available for adults with early symptoms of Alzheimer's disease, which includes mild cognitive impairment and mild dementia.
—Ken Alltucker, USA TODAY, 2 July 2024
There's growing evidence that in Alzheimer's disease, the brain's waste-removal system is impaired, says Jeffrey Iliff, who studies neurodegenerative diseases at the University of Washington but was not a part of the new studies.
—Jon Hamilton, NPR, 26 June 2024
See all Example Sentences for Alzheimer's disease 
Alexander Tin, CBS News, 2 July 2024
These compounds have neuroprotective effects and may reduce cellular damage and inflammation in the neurological system, protecting against conditions like Alzheimer's disease and depression.
—Jillian Kubala, Health, 2 July 2024
The Alzheimer's treatment will be available for adults with early symptoms of Alzheimer's disease, which includes mild cognitive impairment and mild dementia.
—Ken Alltucker, USA TODAY, 2 July 2024
There's growing evidence that in Alzheimer's disease, the brain's waste-removal system is impaired, says Jeffrey Iliff, who studies neurodegenerative diseases at the University of Washington but was not a part of the new studies.
—Jon Hamilton, NPR, 26 June 2024
See all Example Sentences for Alzheimer's disease
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Dictionary Entries Near Alzheimer's disease
Cite this Entry
“Alzheimer's disease.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Alzheimer%27s%20disease. Accessed 7 Jul. 2024.
Copy CitationKids Definition
Alzheimer's disease
noun
Alz·hei·mer's disease
ˈälts-ˌhī-mərz
ˈalts-
ˈalts-
: a brain disease of later life that is characterized by changes in brain tissue with gradual loss of memory and mental abilities
called also Alzheimer's
Medical Definition
Alzheimer's disease
noun
Alz·hei·mer's disease
ˈälts-ˌhī-mərz-
ˈȯlts-
ˈalts-
ˈalz-
ˈȯlts-
ˈalts-
ˈalz-
variants
also Alzheimer disease
or Alzheimer's
: a degenerative brain disease of unknown cause that is the most common form of dementia, that usually starts in late middle age or in old age, that results in progressive memory loss, impaired thinking, disorientation, and changes in personality and mood, that leads in advanced cases to a profound decline in cognitive and physical functioning, and that is marked histologically by the degeneration of brain neurons especially in the cerebral cortex and by the presence of neurofibrillary tangles and plaques containing beta-amyloid
Behavioral problems, such as mood swings and agitation, may also be a part of the progression of Alzheimer's disease.—Allan Perel, The Staten Island (New York) Advance
Allan Perel, The Staten Island (New York) AdvanceAlzheimer disease (AD) is the most common cause of dementia, affecting more than 15 million individuals worldwide.—Niklas Mattsson et al., The Journal of the American Medical Association
Niklas Mattsson et al., The Journal of the American Medical Association… researchers in California have created mice carrying the gene for beta-amyloid protein, the principal component of the plaques riddling the brains of people with Alzheimer's.—Charlene Crabb, U.S. News & World Report
—abbreviation AD
Charlene Crabb, U.S. News & World ReportLove words? Need even more definitions?
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