Source : Webster's Revised Unabridged Dictionary (1913)

Nomadic \No*mad"ic\, a. [Gr. ?. See {Nomad}.]
   Of or pertaining to nomads, or their way of life; wandering;
   moving from place to place for subsistence; as, a nomadic
   tribe. -- {No*mad"ic*al*ly}, adv.

Source : WordNet®

nomadic
     adj : (of groups of people) tending to travel and change
           settlements frequently; "a restless mobile society";
           "the nomadic habits of the Bedouins"; "believed the
           profession of a peregrine typist would have a happy
           future"; "wandering tribes" [syn: {mobile}, {peregrine},
            {roving}, {wandering}]