- an acclamation beginning “Holy, holy, holy Lord” that immediately follows the Preface of the Mass
- a musical setting for this
Origin of SanctusMiddle English from LL(Ec), holy: see saint
- A hymn of praise sung or spoken at the end of the Preface in many Eucharistic liturgies, including the Ordinary of the Roman Catholic Mass.
- A musical setting for this hymn.
Origin of SanctusMiddle English from Late Latin Sānctus from Latin sānctus holy (from the first word of the hymn) ; see sanctify .