Definition of "Vegan"

Vegan¹

/ˈviːɡən/

adjective
not comparable
1. Relating to the star Vega.
noun
plural Vegans
1. (science fiction) Someone from the vicinity of the star Vega.
  Quotations
  Tommy looked deflated. He stepped back slightly, shaking his head. "Never saw such a resemblance. Are you a Vegan?" "No," Bart lied flatly. "Aldebaran. David Briscoe."
  1963, Marion Zimmer Bradley, The Colors of Space‎

Vegan²

noun
plural Vegans
1. Short for Las Vegan (“someone from Las Vegas”).
  Quotations
  […] James G. Scrugham (later to become governor of the state, and a congressman) and Vegans Roy W. Martin , James Cashman and E. W. Griffith.
  1969, Nevada Highways and Parks, volumes 29-30, page 41
2. Someone from Vega in Norway.
3. Someone from Vega in Sweden.