dialectical materialism
noun/ˌdaɪəˌlektɪkl məˈtɪəriəlɪzəm/
/ˌdaɪəˌlektɪkl məˈtɪriəlɪzəm/
[uncountable] (philosophy)- the Marxist theory that all change results from different social forces which come into conflict because of material needs
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dialectical materialism