Centralist
Part of speech: noun
Definition: A proponent of centralism
Part of speech: adjective
Definition: Of or pertaining to centralism
Integration
Part of speech: noun
Definition: The act or process of making whole or entire.The process of fitting into a community, notably applied to 'visible' (ethnic, immigrant...) minoritiesThe operation of finding the integral of a function.In evolution, the process by which the manifold is compacted into the relatively simple and permanent; supposed to alternate with differentiation as an agent in species' development.
Example sentence: Google Photos is great. I enjoy using it to curate my photo collection online. The integration on iOS to Apple Photos is a bit too much voodoo for me.