special effectsBrE /ˌspeʃl ɪˈfekts/ 🔊NAmE /ˌspeʃl ɪˈfekts/ 🔊 (also SFX) noun [plural] unusual or exciting pieces of action in films/movies or television programmes, that are created by computers or clever photography to show things that do not normally exist or happen （电影或电视节目的）特技效果