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extraterrestrial (adj.)

also extra-terrestrial, "occurring or originating outside the Earth," 1812, from extra- + terrestrial. As a noun from 1956.

Entries related to extraterrestrial

extra- 
word-forming element meaning "outside; beyond the scope of; in addition to what is usual or expected," in classical Latin recorded only in extraordinarius, but more used in Medieval Latin and modern formations; it represents Latin extra (adv.) "on the outside, without, except," the old fem. ablative singular of exterus "outward, outside," comparative of ex "out of" (see ex-).
terrestrial (adj.)
late 14c., "of or pertaining to the earth," with + -al (1) + from Latin terrestris "earthly, of the earth, on land," from terra "earth" (from PIE root *ters- "to dry"). Originally opposed to celestial; natural history sense of "living on land" is attested from 1630s. The noun meaning "a human being, a mortal" is recorded from 1590s.

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Definitions of extraterrestrial
1
extraterrestrial (n.)
a form of life assumed to exist outside the Earth or its atmosphere;
Synonyms: extraterrestrial being / alien
2
extraterrestrial (adj.)
originating or located or occurring outside Earth or its atmosphere;
is there extraterrestrial life?
From wordnet.princeton.edu

Dictionary entries near extraterrestrial

extrapolate

extrapolation

extrasensory

extra-special

extraspection

extraterrestrial

extraterritoriality

extravagance

extravagant

extravaganza

extravasation

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