Ambrosian Liturgy

Ambrosian Liturgy that form for celebrating mass said to have been drawn up by St. Ambrose, used to the present day in the diocese of Milan. It is also called the Ambrosian Office (q.v.). While substantially identical with the Roman rite, it has many peculiarities of its own, indicating at once its veritable antiquity and the Eastern origin of certain of its distinctive features. SEE LITURGY.