scientific socialist
/ˌsʌɪənˌtɪfɪk ˈsəʊʃəlɪst/ /ˌsʌɪənˌtɪfɪk ˈsəʊʃ(ə)lɪst/noun
Originally: a socialist whose theories are systematic. Later: an advocate of scientific socialism; especially a Marxist. Opposed to utopian socialist.
adjective
Of or relating to scientific socialism or its advocates; especially. Marxist. Opposed to utopian socialist.
Origin
Mid 19th century. From scientific + socialist, after scientific socialism.