extraterrestrially en · ADV
Etymology
Etymology tree English extraterrestrial Middle English -ly English -ly English extraterrestrially From extraterrestrial + -ly.
Meanings
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(not-comparable) In an extraterrestrial way; not on Earth.
One can well imagine rational beings arising, either on earth or extraterrestrially, who could be biologically independent […]
1998, Richard Dien Winfield, The Just Family: