Prehistoric ocean Synonyms

Prehistoric replaced

Definitions for Prehistoric


  • (adjective) having passed its time of use or usefulness
  • (adjective) belonging to or existing in times before recorded history
  • (adjective) of or relating to times before written history

Synonyms for phrase

PO abbreviation

PO is an abbreviation for Prehistoric Ocean
What does PO stand for?
PO stands for "Prehistoric Ocean"

Definitions for Ocean


  • (noun) the whole body of salt water that covers nearly three-fourths of the earth
  • (noun) an immeasurable depth or space
  • (noun) a large body of water constituting a principal part of the hydrosphere