Definition of dementia
1 : a usually progressive condition (such as Alzheimer's disease) marked by the development of multiple cognitive deficits (such as memory impairment, aphasia, and the inability to plan and initiate complex behavior) … dementia is diagnosed only when both memory and another cognitive function are each affected severely enough to interfere with a person's ability to carry out routine daily activities. — The Journal of the American Medical Association
dementialplay \-shəl\ adjective
Examples of dementia in a sentence
This patient suffers from dementia.
a new study on age-related dementias
Origin and Etymology of dementia
Latin, from dement-, demens mad, from de- + ment-, mens mind — more at mind
First Known Use: 1806
Medical Definition of dementia
: a usually progressive condition (as Alzheimer's disease) marked by the development of multiple cognitive deficits (as memory impairment, aphasia, and inability to plan and initiate complex behavior)
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