Definition of terrestrial
1a
: of or relating to the earth or its inhabitants
terrestrial magnetism
b
: mundane in scope or character : prosaic
2a
: of or relating to land as distinct from air or water
terrestrial transportation
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
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Merriam-Webster unabridged
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Time Traveler for terrestrial
The first known use of terrestrial was in the 15th century
See more words from the same century