different between intraterrestrial vs subterrestrial

English

From intra- +? terrestrial.

intraterrestrial (plural intraterrestrials)

(microbiology) a microbe which lives deep underground
(ufology) any of a race of sapient beings who live inside the Earth and operate UFOs

intraterrestrial (not comparable)

sub- +? terrestrial

subterrestrial (comparative more subterrestrial, superlative most subterrestrial)

subterrestrial (plural subterrestrials)

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