gerontocracy
noun /ˌdʒerənˈtɒkrəsi/
/ˌdʒerənˈtɑːkrəsi/
(plural gerontocracies)
[countable, uncountable]- a state, society or group governed by old people; government by old people
老人统治的国家(或社会、组织);老人统治 词源mid 19th cent.: from Greek gerōn, geront- ‘old man’ + -cracy.