tripolar

tri- +‎ polar

tripolar (not comparable)

1. (physics) Having three poles.
2. Having three electrical connections.
3. Having or involving three centers of military, economic or political power.
   • 2011, Barry Eichengreen, The Bear of Bretton Woods:

     Instead, what will ultimately replace today’s dollar-centric international monetary and financial system is a tripolar system organized around the dollar, the euro, and the Chinese renminbi.

• tripolarity