1. (noun)Mandaean, Mandean a member of a small Gnostic sect that originated in Jordan and survives in Iraq and who believes that John the Baptist was the Messiah
2. (adj)Mandaean, Mandean the form of Aramaic used by the Mandeans
3. (adj)Mandaean, Mandean of or relating to the Mandaean people or their language or culture