ˈbɒlʃəvɪk ˈboʊ̯lʃəvɪk ˈbɒlʃəvɪst ˈmɑːksɪst ˈmɑːɹksɪst ˈbɒl.ʃi of or relating to Bolshevism Bolshevik Revolution emotionally charged terms used to refer to extreme radicals or revolutionaries a Russian member of the left-wing majority group that followed Lenin and eventually became the Russian communist party