Home › Words › P › paleocontactpaleocontactpaleocontact · noun — the theory that intelligent extraterrestrial beings (sometimes called ancient astronauts) visited Earth in the distant past, influencing human culture, technology, or religion.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom paleo- + contact.nounThe theory that intelligent extraterrestrial beings (sometimes called ancient astronauts) visited Earth in the distant past, influencing human culture, technology, or religion.Definitions & examples from Wiktionary (CC BY-SA 3.0).