Source : Webster's Revised Unabridged Dictionary (1913)

Hejira \He*ji"ra\, n.
   See {Hegira}.

Source : WordNet®

Hejira
     n 1: the flight of Muhammad from Mecca to Medina in 622 which
          marked the beginning of the Muslim era; the Muslim
          calendar begins in that year [syn: {Hegira}]
     2: a journey by a large group to escape from a hostile
        environment [syn: {exodus}, {hegira}]