Real Dictionary

racism
uncountable noun: Racism is the belief that people of some races are inferior to others, and the behaviour which is the result of this belief. Racism also refers to the aspects of a society which prevent people of some racial groups from having the same privileges and oppo

racism in American English
belief in or doctrine asserting racial differences in character, intelligence, etc. and the superiority of one race over another or others: racist doctrine also, typically, seeks to maintain the supposed purity of a race or the races
noun: a belief or doctrine that inherent differences among the various human races determine cultural or individual achievement, usually involving the idea that one's own race is superior and has the right to rule others

racism in British English
noun: the belief that races have distinctive cultural characteristics determined by hereditary factors and that this endows some races with an intrinsic superiority over others