Althusser, Louis Syllabification: (Alt·hus·ser, Louis)Pronunciation: /ˈältˌho͞osər, ˌält(h)o͞oˈsā/Definition of Althusser, Louis (1918–90), French philosopher. He reinterpreted traditional Marxism in the light of structuralist theories. Notable works: For Marx (1965) and Reading Capital (1970). Althusser, Louis in other Oxford dictionaries Definition of Althusser, Louis in the British & World English dictionary