(1913- ) a black woman in the US who became famous in 1955 because she refused to give her seat on a bus to a white man. This action was illegal in the US state of Alabama and she was arrested by the police. As a result, Martin Luther King persuaded people not to use these buses, and in 1956 the US Supreme Court said that segregation (=keeping black people separate from white people) on buses was not legal.
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.
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