Pronunciation: (ek'sôr-sist, -sur-), [key]
1. a person who practices exorcism.
2. Rom. Cath. Ch.
a. a member of the second-ranking of the four minor orders.
b. the order itself. Cf. acolyte (def. 2), lector (def. 2), ostiary (def. 1).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.