'Introit' definitions:

Definition of 'introit'

From: WordNet
noun
A composition of vocal music that is appropriate for opening church services

Definition of 'Introit'

From: GCIDE
  • Introit \In*tro"it\, n. [L. introitus, fr. introire to go into, to enter; intro within + ire to go: cf. F. introit.] [1913 Webster]
  • 1. A going in. --Caxton. [1913 Webster]
  • 2. (R. C. Ch.) (a) A psalm sung or chanted immediately before the collect, epistle, and gospel, and while the priest is entering within the rails of the altar. (b) A part of a psalm or other portion of Scripture read by the priest at Mass immediately after ascending to the altar. [1913 Webster]
  • 3. (R. C. Ch.) An anthem or psalm sung before the Communion service. [1913 Webster]
  • 4. Any composition of vocal music appropriate to the opening of church services. [1913 Webster]