1. (adj.)terrestrial pertaining to, consisting of, or representing the earth as distinct from other planets.
2. terrestrial of or pertaining to land as distinct from water.
3. terrestrial growing or living on land or on the ground; not aquatic, arboreal, etc.
4. terrestrial growing in the ground; not epiphytic or aerial.
5. terrestrial of or pertaining to the earth or this world; worldly; mundane.
6. (n.)terrestrial an inhabitant of the earth, esp. a human being.
Etymology: (1885–90)
Definition of 'terrestrial'
Princeton's WordNet
1. (adj)tellurian, telluric, terrestrial, terrene of or relating to or inhabiting the land as opposed to the sea or air
2. (adj)planetary, terrestrial of or relating to or characteristic of the planetEarth or its inhabitants "planetary rumblings and eructations"- L.C.Eiseley ; "the planetary tilt"; "this terrestrial ball"
3. (adj)terrestrial operating or living or growing on land
4. (adj)mundane, terrestrial concerned with the world or worldly matters "mundane affairs"; "he developed an immense terrestrial practicality"
5. (adj)sublunar, sublunary, terrestrial of this earth "transcendental motives for sublunary actions"; "fleeting sublunary pleasures"; "the nearest to an angelic being that treads this terrestrial ball"
Definition of 'terrestrial'
Webster Dictionary
1. (adj)terrestrial of or pertaining to the earth; existing on the earth; earthly; as, terrestrial animals
2. (adj)terrestrial representing, or consisting of, the earth; as, a terrestrial globe
3. (adj)terrestrial of or pertaining to the world, or to the present state; sublunary; mundane
4. (adj)terrestrial consisting of land, in distinction from water; belonging to, or inhabiting, the land or ground, in distinction from trees, water, or the like; as, terrestrial serpents
5. (adj)terrestrial adapted for the observation of objects on land and on the earth; as, a terrestrial telescope, in distinction from an astronomical telescope
Definitions of terrestrial 
