A fictional science, concerned with the physical remains of alien cultures. These may be found on planets which have been inhabited or visited by extraterrestrials.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "xenoarchaeology" in a sentence
"(Now if the word xenoarchaeology had been used I might have agreed."
"I did know the xenoarchaeology research team that I'd joined was one of Thu's reform showpieces, intended to demonstrate Thu's enlightened governmental process."
"Likewise a serious study of how xenoarchaeology is practiced could give genuinely useful insights into the assumptions in SETI programmes."