gerontology
US /ˌdʒer.ənˈtɑː.lə.dʒi/
UK /ˌdʒer.ənˈtɑː.lə.dʒi/

1.
gerontologie
the scientific study of old age, the process of aging, and the particular problems of old people
:
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She decided to specialize in gerontology after seeing her grandparents age.
Ze besloot zich te specialiseren in gerontologie nadat ze haar grootouders ouder zag worden.
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Advances in gerontology are helping us understand the aging process better.
Vooruitgang in de gerontologie helpt ons het verouderingsproces beter te begrijpen.