Proper noun

1. One who follows the beliefs of Arianism.
2. A disciple of the Egyptian monk Arius, presbyter of Alexandria, who denied the Trinity.
3. A heretic or any heresy.
4. A person born under the sign of Aries
5. A member of the ancient tribe of the Arios valley in Afghanistan, or their descendants.

Adjective

1. Of or pertaining to Arianism
2. Resembling or possessing similarity to Arianism and its doctrines.
3. heretical.