Related to or having the character of a federation; involving the organization of separate groups into a united system.
From 'federation' (the noun) + '-al' (relating to). Developed in English during the 1800s as political scientists needed to describe federal systems more precisely.
The 'federational' structure of the US government—with power split between federal and state levels—was revolutionary because it solved an ancient problem: how do you stay united without crushing local freedom?
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