Source : Webster's Revised Unabridged Dictionary (1913)

Homesteader \Home"stead*er\, n.
   One who has entered upon a portion of the public land with
   the purpose of acquiring ownership of it under provisions of
   the homestead law, so called; one who has acquired a
   homestead in this manner. [Local, U.S.]

Source : WordNet®

homesteader
     n : someone who settles lawfully on government land with the
         intent to acquire title to it [syn: {squatter}, {nester}]