Sanctus definition by Webster's New World
- an acclamation beginning “Holy, holy, holy Lord” that immediately follows the Preface as of the Mass
- a musical setting for this
Origin: Middle English ; from Ecclesiastical Late Latin holy: see saint
Sanctus definition by American Heritage Dictionary
noun pl. Sanc·tus·es
- a. A hymn of praise sung at the end of the Preface in many Eucharistic liturgies.b. A hymn of praise that is the last item of the Preface of the Ordinary of the Roman Catholic Mass.
- A musical setting for either of these hymns of praise.
Origin: Middle English, from Late Latin Sānctus, from Latin sānctus, holy (from the first word of the hymn); see sanctify.