the group of three seats, each called a sedile (sɛˈdaɪlɪ) or sedilium (sɛˈdaɪlɪəm), often recessed, on the south side of a sanctuary where the celebrant and ministers sit at certain points during High Mass
Word origin
C18: from Latin, from sedīle a chair, from sedēre to sit
sedilia in American English
(sɪˈdɪliə)
plural nounWord forms: singularseˈdile (sɪˈdaɪli)
a set of seats, usually three, traditionally along the south side of a church, for the use of officiating clergy