Verb

(en verb)

(science fiction) To transform the atmosphere (or biosphere) of another planet into one having the characteristics of Earth.

* {{quote-magazine

, year = 1942 , date = July , first = Jack , last = Williamson , authorlink = Jack Williamson , magazine = , title = Collision Orbit , volume = 29 , issue = 5 , page = 82 , passage = He had been the original claimant of Obania, forty years ago; and Drake was the young spatial engineer he employed to terraform the little rock, only two kilometers through—by sinking a shaft to its heart for the paragravity installation, generating oxygen and water from mineral oxides, releasing absorptive gases to trap the feeble heat of the far-off Sun. }}

Earthscape