The Collaborative International Dictionary
Ambrosin
Ambrosin \Am"bro*sin\, n. [LL. Ambrosinus nummus.] An early coin struck by the dukes of Milan, and bearing the figure of St. Ambrose on horseback.
Wiktionary
ambrosin
n. An early coin struck by the dukes of Milan, and bearing the figure of St. Ambrose on horseback.