Definitions
There is 1 meaning of the phrase
Priscoan Aeon.
Priscoan Aeon - as a noun
The earliest eon in the history of the earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life
Synonyms (Exact Relations)
hadeanhadean aeonhadean eonhadean timepriscoanpriscoan eon
