Cite
 

Meaning of introit

in•tro•it

Pronunciation: (in'trō-it, -troit), [key]
— n.
  1. a part of a psalm with antiphon recited by the celebrant of the Mass at the foot of the altar and, at High Mass, sung by the choir when the priest begins the Mass.
  2. a psalm or anthem sung as the celebrant of the Holy Communion enters the sanctuary.
  3. a choral response sung at the beginning of a religious service.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: