Source : Webster's Revised Unabridged Dictionary (1913)

Tellurian \Tel*lu"ri*an\, a. [L. tellus, -uris, the earth.]
   Of or pertaining to the earth. --De Quincey.

Tellurian \Tel*lu"ri*an\, n.
   1. A dweller on the earth. --De Quincey.

   2. An instrument for showing the operation of the causes
      which produce the succession of day and night, and the
      changes of the seasons. [Written also {tellurion}.]

Source : WordNet®

tellurian
     adj : of or relating to or inhabiting the land as opposed to the
           sea or air [syn: {telluric}, {terrestrial}, {terrene}]
     n : an inhabitant of the earth [syn: {earthling}, {earthman}]