— exorcismal /ek'sawr siz"meuhl, -seuhr/ , exorcisory /ek"sawr suy"zeuh ree, -seuhr/ , exorcistical, exorcistic , adj.
/ek"sawr siz'euhm, -seuhr-/ , n.
1. the act or process of exorcising.
2. the ceremony or the formula used in exorcising: An elaborate exorcism was pronounced over the sick man.
[ 1350-1400; ME exorcisme ( exorkismós administration of an oath. See EXORCISE, -ISM ]