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EarthlikePlanet-tm 2.jpg


Middle English (in the sense ‘temporal, worldly, mundane’): from Latin terrestris (from terraearth’)


  • 1a : of or relating to the earth or its inhabitants <terrestrial magnetism>
b : mundane in scope or character : prosaic
b (1) : living on or in or growing from land <terrestrial plants> <terrestrial birds> (2) : of or relating to terrestrial organisms <terrestrial habits>
  • 3: belonging to the class of planets that are like the earth (as in density and silicate composition) <the terrestrial planets Mercury, Venus, and Mars>

See also