pre- + terrestrial
preterrestrial (not comparable)
- Prior to the formation of Earth
1980, Eugenio Donato, “The Museum's Furnace”, in Textual Strategies[1], →ISBN, page 235:The System of the World of Laplace is the history of a preterrestrial era, the history of the world before the formation of the planet Earth, or if one prefers, of the Earth in its unity with the Sun.
- (geology) Occurring prior to a meteorite's impact with Earth
2003, American Geological Institute, Dictionary of Mining, Mineral, and Related Terms[2], →ISBN, page 333:A plagioclase glass in some chondrites and irons formed by preterrestrial impact between meteorites in space.
