Dictionary.net

• One of a Gnostic sect of the second century, so called from Marcus, an Egyptian, who was reputed to be a margician.

2010 - New Age Dictionary Database
By Oddity Software

• One of a Gnostic sect of the second century, so called from Marcus, an Egyptian, who was reputed to be a margician.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.