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Noun: imperialism  im'peer-ee-u,li-zum
  1. The policy extending a nation's authority by territorial gain, or by the establishment of economic and political dominance over other nations
     
  2. A political orientation that advocates imperial interests
     
  3. Any instance of aggressive extension of authority

Derived forms: imperialisms

Type of: control, foreign policy, ideology, mythos, political orientation, political theory

Encyclopedia: Imperialism, the Highest stage of Capitalism