Herbad in the context of "Mobad"

A mobed, mowbed, or mobad (Middle Persian: 𐭬𐭢𐭥𐭯𐭲) is a Zoroastrian cleric of a particular rank. Unlike a herbad (ervad), a mobed is qualified to serve as celebrant priest at the Yasna ceremony and other higher liturgical ceremonies. A mobed is also qualified to train other priests.