> as lemmas
extra-terrestrial
extra-terrestrial adj. and n. 
/ˌɛkstrətɛˈrɛstrɪəl/,
Brit. /ˌɛkstrətᵻˈrɛstrɪəl/
, /ˌɛkstrətᵻˈrɛstrɪəl//ˌɛkstrətɛˈrɛstrɪəl/U.S. /ˌɛkstrətəˈrɛstriəl/
= extra-terrene adj./ˌɛkstrətəˈrɛstriəl/ΘΠ
the world > the universe > space > [adjective]
apogeana1644
ultramundane1656
extramundane1661
super-aerial1664
outworldish1674
unterrestrial1745
transmundane1777
extra-terrene1843
cosmical1849
extra-telluric1868
extra-terrestrial1868
exterrestrial1870
cosmic1876
extra-tellurian1881
supermundane1883
Uranian1908
contraterrene1946
space-borne1952
space-borne1967
spacy1967
society > inhabiting and dwelling > inhabitant > inhabitant according to environment > [noun] > extraterrestrial inhabitant
heavenwareOE
superlunary1649
Selenite1650
lunarian1708
planetarian1778
little green man1802
starling1839
alien1931
space colony1932
space alien1936
ET1944
outworlder1948
off-worlder1957
extra-terrestrial1963
Klingon1968
grey1989
1868 W. Lockyer & J. N. Lockyer tr. A. Guillemin Heavens (ed. 3) 188 Bodies situated in the extra-terrestrial regions.
1882 Nature 21 Dec. 173/2 The oblique direction of the meteor..is another evidence of its extra-terrestrial origin.
1945 Wireless World Oct. 305 (title) Extra-terrestrial relays. Can rocket stations give world-wide radio coverage?
1963 M. Caidin Man-in-space Dict. 81/1 Extraterrestrial, anything or any being beyond the earth, or from some place other than the earth.
1966 New Statesman 8 July 58/3 Contact with extra-terrestrials will..come suddenly.
1967 New Scientist 5 Oct. 9/1 MacDonald himself, having started to study UFOs 18 months ago, feels that the idea that the UFOs are extraterrestrial must be given serious attention.
1969 Times 28 Apr. 10/8 Scientists have looked for signs of extraterrestrial life in meteorites.
<
as lemmas