gerontology
Concise Oxford English Dictionary © 2008 Oxford University Press:
gerontology /ˌdʒɛrənˈtɒlədʒi/
▶noun the scientific study of old age and old people.
– derivatives
gerontological adjective,
gerontologist noun.
gerontological adjective,
gerontologist noun.
'gerontology' also found in these Oxford entries:

