What does ambrosian mean?
The definition of ambrosian
Am*bro”sian, a.
Ambrosial. [R.] . Jonson.
Am*bro”sian, a.
Of or pertaining to St. Ambrose; as, the Ambrosian office, or ritual, a formula of worship in the church of Milan, instituted by St. Ambrose. Ambrosian chant, the mode of signing or chanting introduced by St. Ambrose in the 4th century.