From Longman Dictionary of Contemporary Englishexorcistex‧or‧cist /ˈeksɔːsɪst $ -ɔːr-/ noun [countable] ROsomeone who tries to make evil spirits leave a place
Examples from the Corpus
exorcist• She has now called in an exorcist from Beverly Hills to get rid of her celebrity ghosts.• They need an exorcist to figure out what in the devil possessed them to return to their worst form from last season.• And he admitted he was shocked that an exorcist was brought in.• Unlike everybody else, however, the hard man did not look up the neighbourhood exorcist in Thompson's Local Directory.• These ministries, many of the exorcists tell me, are being used increasingly each year.Exorcist, TheThe ExorcistEx‧or‧cist, The /ˈeksɔːsɪst $ -ɔːr-/ (1973) a US horror film (=a film that is intended to make you feel frightened) about a young girl who behaves very strangely and kills several people because the devil has taken control of her body. It is especially famous for the scene in which the girl's head spins around very fast, and another in which a lot of green vomit comes out of her mouth. 