The Collaborative International Dictionary of English v.0.48:

Tellurian \Tel*lu"ri*an\, a. [L. tellus, -uris, the earth.]
   Of or pertaining to the earth. --De Quincey.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tellurian \Tel*lu"ri*an\, n.
   1. A dweller on the earth. --De Quincey.
      [1913 Webster]

   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.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

tellurian
    adj 1: of or relating to or inhabiting the land as opposed to
           the sea or air [syn: tellurian, telluric,
           terrestrial, terrene]
    n 1: an inhabitant of the earth [syn: tellurian, earthling,
         earthman, worldling]

Moby Thesaurus II by Grady Ward, 1.0:

63 Moby Thesaurus words for "tellurian":
   Adamite, Adamitic, anthropocentric, anthropological, being, body,
   cat, chap, character, creature, customer, duck, earth, earthbound,
   earthling, earthly, earthy, fellow, finite, fleshly,
   fluvioterrestrial, frail, geophilous, groundling, guy, hand, head,
   hominal, homo, homocentric, human, human being, humanistic,
   individual, joker, life, living soul, man, man-centered, mortal,
   mundane, nose, one, only human, party, person, personage,
   personality, single, somebody, someone, soul, subastral, sublunar,
   telluric, terran, terraqueous, terrene, terrestrial, unangelic,
   weak, worldling, worldly