- a psalm or hymn sung or played at the opening of a Christian worship service
- R.C.Ch. the first variable part of the Mass, consisting typically of one or more psalm verses
Origin of introitMiddle English introite ; from Middle French ; from Classical Latin introitus, a going in, entrance (in LL(Ec), Introit of the Mass) ; from introire ; from intro-, intro- + ire, to go: see exit
- Ecclesiastical A hymn or psalm sung when the officiant enters at the opening of a service.
- Roman Catholic Church The beginning of the Mass, usually consisting of an antiphon, a psalm verse, and the Gloria Patri.
Origin of introitMiddle English, introit of the Mass, from Old French introite, from Medieval Latin introitus, sung passage at entrance of celebrant, from Latin introitus, entrance, from past participle of intro&imacron;re, to enter : intr&omacron;-, in; see en in Indo-European roots + &imacron;re, to go; see ei- in Indo-European roots.
- The action of entering or going in; an entrance.
- (Roman Catholicism) A psalm sung or chanted immediately before the collect, epistle, and gospel, and while the priest is entering within the rails of the altar, which begins with this verse: «Requiem aeternam dona eis, Domine».
- (Roman Catholicism) A part of a psalm or other portion of Scripture read by the priest at Mass immediately after ascending to the altar.
- An anthem or psalm sung before the Communion service.
- Any composition of vocal music appropriate to the opening of church services.