Republicanism

• The definition of a Republic is: a constitutionally limited government of the representative type, created by a written Constitution--adopted by the people and changeable (from its original meaning) by them only by its amendment--with its powers divided between three separate Branches: Executive, Legislative and Judicial. Here the term "the people" means, of course, the electorate. http://www.iamforsure.com/politics/DemRep.html
• Republicanism is the political orientation of those who hold that a republic is the best form of government 
  wordnetweb.princeton.edu/perl/webwn
• Republicanism is the ideology of governing a nation as a republic, where the head of state is appointed by other means than hereditary, often elections. An important element of Republicanism is constitutional law to limit the state's power over its citizens.
  en.wikipedia.org/wiki/Republicanism
• Republicanism is the advocacy of a republic as a means of government
  en.wiktionary.org/wiki/republicanism
• Republicanism is the political ideology of a nation as a republic, with an emphasis on liberty, rule by the people, and the civic virtue practiced by citizens.
  en.citizendium.org/wiki/Republicanism