Webster's English Dictionary

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terrestrial

Cross references:
  1. earthly               
 
ter.res.tri.al \t*-'res-t(r)e--*l, -'res(h)-ch*l\ \-e-\ aj [ME, fr. L 
   terrestris, fr. terra earth - more at TERRACE] 1a: of or relating to the 
   earth or its inhabitants {~ magnetism}  1b: mundane in scope or character : 
   PROSAIC  2a: of or relating to land as distinct from air or water {~ transp 
   ortation} 2b1: living on or in or growing from land {~ plants ~ birds)> 
   2b2: of or relating to terrestrial organisms {~ habits}  - terrestrial n