interrex

  1. Noun.  (history) An official in Ancient Rome, who acted as single head of state during the interregnum between two consulates.
  2. Noun.  (history) An equivalent regent from the death of a Polish king till the election and enthronement of his successor.
  3. Noun.  (figuratively) A similar interim ruler, CEO etc.

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This entry was last updated on RefTopia from its source on 3/20/2012.