the.com/terrestrial
Of the Earth, by the Earth, for whatever stands on the Earth.
means Relating to land or the planet Earth, as opposed to water, air, or outer space.
from From Latin terrestris, from terra, the ground beneath your feet — the same root that grounds terrain, territory, and inters the dead.
AntonymAquatic, aerial, and gloriously, extraterrestrial.
TV throwbackTerrestrial television meant signals from towers, not satellites.
AstronomyTerrestrial planets are rocky: Mercury, Venus, Earth, Mars.