An adherent of Cæsar, of the Emperor (against the Pope), or of an imperial system.

Politics. Chiefly with capital initial. A person advocating political and social reform tending… In continental Europe and elsewhere.

a person who advocates an ideology combining Christian values and democratic principles; spec. a member or supporter of any of various political…

Politics. A supporter or advocate of policies aiming to bring about immediately practicable or feasible reforms; a pragmatic reformer.