Full record for terraforming n.

Definition The process of transforming a planet into one sufficiently similar to the earth to support terrestrial life.
OED requirements antedating 1942
Earliest cite Jack Williamson in Astounding
Comment Rick Hauptmann submitted a 1942 cite from Jack Williamson's "Collision Orbit". (Earliest cite in the OED: 1949)
Last modified 30 July, 2019

Citations for terraforming n.

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1942 Astounding Sci. Fiction July 85/2 Smaller‥. Less than a tenth the mass. There's plenty of time to land a terraforming crew, to install a new-type directional drive. It's a job for the guard.
1942 Astounding Sci. Fiction July 87/2 But the directional space drive; the negative safety field, to guard a ship's hull from spatial drift; the peegee reducer, that broke up compounds by direct selective attraction, yielding oxygen to breathe and iron for construction out of common hematite; the peegee terraforming unit, that held man and his precious blanket of air to any tiny rock–those were all unexpected gifts, amazing even the engineer.
1979 J. Oberg Farming Planets in O. Davis Omni Bk. of Space 15 The word for this awesome concept is terra-forming.
1980 D. Brin Sundiver iv.x. 107 Have only allowed the Pring to colonize class A worlds, devoid of life and requiring terraforming, but free of use restrictions by the Institutes of Tradition and Migration.
1985 K. S. Robinson in G. Dozois Isaac Asimov's Mars (1991) 209 The terraforming is just part of it–the visible sign of a history of exploitation.
1988 C. J. Cherryh Cyteen 41 Terraforming, while wreaking havoc on many native species, has provided a unique opportunity to study interface zones and compare adaptive changes in Terrene and indigenous species.
1991 Locus Sept. 19/1 She finds there–an explanation not only of the mystery of the planoforming (McAuley's term for ‘terraforming’) of P'thrsn but of the nature and multimillion-year history of the Enemy, now known as the Alea.
1993 Locus Oct. iv. 23/1 The first century of Martian terraforming builds on the efforts of the pioneers.
1993 K. S. Robinson Green Mars (new ed.) 97 And all of it completely empty, rocky, untouched, primordial–the volcanic rock as bare as if cooled the week before–nothing at all of humanity in it–no sign of terraforming.
1993 K. S. Robinson Red Mars ii. 80 That seems to me to expressly forbid the terraforming that so many of you are talking about.
1993 J. Pournelle & S. M. Stirling Prince of Sparta 49 Terraforming: techniques whereby an extrasolar planet is rendered more habitable for humans and/or other Terran life.
1993 A. C. Clarke Hammer of God 66 At one time, Phobos had been regarded as an invaluable source of raw materials for space-construction projects, but Martian conservationists–perhaps feeling guilty about the steady terraforming of their own planet–had managed to prevent this.
1993 K. S. Robinson Red Mars ii. 88 The treaty also says we have to take measures to prevent the disruption of planetary environments, I think is how they put it. It's in Article Seven. That seems to me to expressly forbid the terraforming that so many of you are talking about.
1993 G. Bear Moving Mars 391 The planets are rich with minerals, one is Earth-sized and has a reducing atmosphere but no detectable life ‥ Ripe for terraforming.
1993 Locus June 59/1 Little more than a scaffolding on which to hand a whole catalog of classic Clarkean inventions and digressions‥the terraforming of Mars.
1993 I. M. Banks Against Dark Background 216 ‘Pretty thin air.’‘Getting thinner all the time,’ she agreed. ‘Unbreathable in another thousand years; crap terraforming ‥’
1993 K. S. Robinson Red Mars (1993) 78 That seems to me to expressly forbid the terraforming that so many of you are talking about.
1995 P. David Captain's Daughter ii. v. 48 After all, terraforming techniques were being used on far-off worlds to transform them into Earth-like environments.
1996 SFX May 85/1 The people have just been the backdrop, the science of Mars' terraforming the main focus.
1999 Interzone Jan. 31/3, I invented the term ‘terraforming,’ which seems to have gotten into the language–at least into the dictionaries.
1999 A. Thomson Through Alien Eyes (2000) ii. 68 Burnham has official ties to HumanSpace, and the Terraforming Foundation. Unofficially, she has ties to several pronatalist groups including a couple with terrorist leanings.
2001 Locus June 17/2 Recruits‥work special projects, which in this case is the terraforming of a planet called Downside.