pol ‧ it ‧ bu ‧ ro /ˈpɒlɪtbjʊərəʊ, $ ˈpɑːlətbjʊroʊ/ BrE AmE noun ( plural politburos ) [countable]
[ Date: 1900-2000 ; Language: Russian ; Origin: politbyuro , from politicheskoye byuro 'political bureau' ]
the most important decision-making committee of a Communist party or Communist government