Title: dementia
Long Title: IUPAC Gold Book - dementia
DOI: 10.1351/goldbook.11704
Status: current

Definition
Serious loss of brain function in a previously unimpaired person, affecting memory, thinking, and behavior.

Note
It may be static as a result of brain injury, or progressive with long-term decline due to damage of disease.

Related Term
- brain: https://goldbook.iupac.org/terms/view/11647

Source
- PAC, 2015, 87, 841. 'IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)' on page 860 (https://doi.org/10.1515/pac-2015-0103)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/11704/html
- json: https://goldbook.iupac.org/terms/view/11704/json
- xml: https://goldbook.iupac.org/terms/view/11704/xml

Citation: Citation: 'dementia' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.11704
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Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.
Accessed: 2026-05-10T02:37:34+00:00