a mass, inside sense of a composition establishing a number of sung areas of the liturgic service (usually chosen from ordinary parts Kyrie, Gloria, Credo, Agnus Dei and/or Sanctus) to songs, notably when the text in Latin can be used (as long universally prescribed by Rome)
The service or sacrifice regarding the Mass.
The mass; a mass.
within the Mozarabic liturgy, a variable prayer or address, called more totally the Oratio Missœ (Prayer associated with the Mass), responding to towards the Gallican Præfatio Missœ (Preface of this Mass). It probably derived its name through the fact that the dismissal (missa) associated with the catechumens initially preceded it.