decentralist

verb (used with object), de·cen·tral·ized, de·cen·tral·iz·ing.

1. to distribute the administrative powers or functions of (a central authority) over a less concentrated area: to decentralize the national government.
2. to disperse (something) from an area of concentration: to decentralize the nation’s industry.

verb (used without object), de·cen·tral·ized, de·cen·tral·iz·ing.

3. to undergo decentralization: The city government is looking for ways to decentralize.

verb

1. to reorganize (a government, industry, etc) into smaller more autonomous units
2. to disperse (a concentration, as of industry or population)

v.

1840 (implied in decentralized), probably a back-formation from decentralization. Related: Decentralizing.