noun im·pe·ri·um \im-ˈpir-ē-əm\

Definition of imperium

  1. 1a :  supreme power or absolute dominion :  controlb :  empire 1c :  empire 2

  2. 2 :  the right to command or to employ the force of the state :  sovereignty

Examples of imperium in a sentence

  1. a nation whose economic imperium waned after the war

Origin and Etymology of imperium

Latin — more at empire

First Known Use: 1651

Seen and Heard

What made you want to look up imperium? Please tell us where you read or heard it (including the quote, if possible).