noun pl. Bolsheviks or Bolsheviki
- a member of a majority faction (Bolsheviki) of the Russian Social Democratic Workers' Party, which formed the Communist Party after seizing power in the 1917 Revolution
- a Communist, esp. of the Soviet Union
- loosely any radical: hostile usage
Origin:
Russ (1903) < bol'she, the larger, majority
adjective
of or like the Bolsheviks or Bolshevism