'Gerontocracy' definitions:

Definition of 'gerontocracy'

From: WordNet
noun
A political system governed by old men

Definition of 'Gerontocracy'

From: GCIDE
  • Gerontocracy \Ger`on*toc"ra*cy\, n. [Gr. ?, ?, an old man + ? to rule.] Government by old men. [R.] --Gladstone. [1913 Webster]