what does terrestrial objects mean
terrestrial. 1. Relating to or characteristic of the earth or of human life on earth: earthbound, earthen, earthly, earthy, mundane, secular, tellurian, telluric, temporal, terrene, worldly.2.Consisting of or resembling soil:errestrial. 1. Relating to or characteristic of the earth or of human life on earth: earthbound, earthen, earthly, earthy, mundane, secular, tellurian, telluric, temporal, terrene, worldly. 2. Consisting of or resembling soil: