Full record for earth-type adj.

Definition being of Earth style or manufacture
OED requirements antedating 1941
Earliest cite Jack Williamson, 'Son of Two Worlds'
Comment Katrina Campbell submitted a 1981 cite from Bob Shaw's "Galactic Tours". Katrina Campbell submitted a cite from a 1985 reprint of Edmond Hamilton's 1968 "The Closed Worlds". Katrina Campbell submitted a cite from a 1980 reprint of Edmund Cooper's 1969 "Sea-Horse in the Sky". Ralf Brown located a cite from Robert Silverberg's "Collecting Team"; Mike Christie submitted the cite from a 1971 reprint. Ralf Brown submitted a 1953 cite from Hal Clement's "Mission of Gravity". Malcolm Farmer submitted a cite from a reprint of Poul Anderson's "Star Ship"; Mike Christie verified the cite in the 1950 original magazine appearance. Douglas Winston submitted a cite from a 2000 reprint of Leo Frankowski's 1999 "A Boy and His Tank". Fred Galvin submitted a cite from a 1959 reprint of Edmond Hamilton's "Son of Two Worlds", which MIke Christie verified in its 1941 first publication.
Last modified 6 July, 2008

Citations for earth-type adj.

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1941 R. Heinlein in Astounding Sci. Fiction Aug. 98/1 To discover what sort and in particular whether it supported an Earth-type planet required a close approach at reasonably low speed.
1941 E. Hamilton Son Two Worlds in Thrilling Wonder Stories Aug. 28/2 Most of these Martians wore Earth-type synthesuits of somber hues.
1944 ‘H. Clement’ Trojan Fall in Astounding Sci. Fiction June 58/2 He was reasonably certain of finding a habitable planet; the star that lacked worlds was the exception rather than the rule. Earth-type worlds were rarer, but frequent enough to have forced the enactment of several regulations against unrestricted colonization.
1950 P. Anderson Star Ship in Planet Stories Fall 72/2 Its walls were manned by more fighters than that, and there were the terrible Earth-type guns as well.
1953 Astounding Sci. Fiction Apr. 39/2 A faint swirl of white crystals followed him out—ice and carbon dioxide, frozen out of the Earth-type air inside as it cooled to Mesklin's bitter temperature.
1954 J. F. McComas Shock Treatment in R. Healy Nine Tales of Space & Time (1955) 53 That plant is now grown under government supervision on all Earth-type planets.
1956 C. D. Simak in Galaxy Oct. 106/1 It's Earth-type, oxygen, and the climate's fine so far.
1956 R. Silverberg Collecting Team in Moonferns & Starsongs (1971) 29 During the night, invisible hands had put it there. Had assembled and built a cozy little Earth-type house and dropped it next to our ship for us to live in.
1957 P. Anderson & G. R. Dickson Earthman's Burden 8 We thought we'd look in and check on conditions, as well as resting ourselves on an Earth-type world.
1966 ‘M. Leinster’ in Analog Sci. Fiction/Sci. Fact Nov. 28/1 ‘There's a yellow sun that looks close.’‘It's Delhi‥. It has an Earth-type planet and there may have been a colony on it once. But there's nothing there now! There's something wrong with it and no ship is known to have got back to its home spaceport after landing on it.’
1967 P. Meadows in Mag. Fantasy & Sci. Fiction Apr. 89/1 In this outer rim of the galaxy with its sparse star population, the explorer team was overjoyed to find an earth-type planet.
1969 E. Cooper Sea-Horse in Sky (1980) 24 He had switched on the bedside lamp—ordinary earth-type with an ordinary sixty-watt bulb—and had explored further.
1980 M. Edwards & R. Holdstock Tour of Universe 46 Altuxor iv—otherwise known as Vandezande's World or Kameleos—is Earth-type, though breathing apparatus is required.
1981 B. Shaw Galactic Tours 46 An idea of its size can be gained from a close study of the illustration—each of the cactus-like vegetables of the planet Excalibur, among which the ship lies, is as tall as a mature Earth-type tree.
1988 K. Randle & R. Cornett Aldebaran Campaign 56 If the planet hadn't had an Earth-type atmosphere, we'd have had to go in wearing environment suits and set up our own biosphere shelter so we could occasionally stand-down without the suits. Living in an environment suit is a bitch.
1994 Interzone July 9/1 The search was soon switched to Earthtype planets, and these proved difficult to find.
1999 L. Frankowski Boy & His Tank 87 Forests of Earth-type trees were rapidly supplanting the native ferns, but there were no weeds in the fields, no undesirable animals, no mosquitoes in the evenings, and no leeches in the wetlands!