Simple Definition of Alzheimer's disease

from our Learner's Dictionary

Alz*hei*mer's disease

noun

: a disease of the brain that causes people to slowly lose their memory and mental abilities as they grow old

called also Alzheimer's

Cite this Entry

“Alzheimer's disease.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/Alzheimer%27s%20disease. Accessed 18 Jun. 2026.

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