noun
- plural of nostology; the study of senility, aging, or the decline of mental and physical faculties in old age
Usage: medical/scientific; rare; chiefly historical
Examples
- Early nostologies attempted to categorize the various stages of cognitive decline in elderly patients.
- The physician's research in nostologies contributed to understanding age-related deterioration.
- Nostologies as a field has largely been superseded by modern gerontology and geriatric medicine.