Merriam-Webster Collegiate Dictionary - totalitarian

 I. adjective  Etymology: Italian totalitario, from totalita totality  Date: 1926  1.  a. of or relating to centralized control by an autocratic leader or hierarchy ; authoritarian, dictatorial; especially despotic  b. of or relating to a political regime based on subordination of the individual to the state and strict control of all aspects of the life and productive capacity of the nation especially by coercive measures (as censorship and terrorism)  2.  a. advocating or characteristic of ~ism  b. completely regulated by the state especially as an aid to national mobilization in an emergency  c. exercising autocratic powers ; tending toward monopoly  II. noun  Date: circa 1934 an advocate or practitioner of ~ism