deoligarchization UK /diːˌɒlɪɡɑːkaɪˈzeɪʃn̩/US /diˌɑləɡɑɹˌkaɪˈzeɪʃən/ noun1 •The act or process of reversing oligarchization, that is, the act or process of democratization by lessening the political power of oligarchs or removing them from influential positions.Of course, some MO's [social movement organizations] begin with a relatively oligarchical structure and de-oligarchization may occur. — 1966