Prehistoric abyssal Synonyms

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

PA abbreviation

PA is an abbreviation for Prehistoric Abyssal
What does PA stand for?
PA stands for "Prehistoric Abyssal"

Definitions for Abyssal


  • (adjective) relating to ocean depths from 2000 to 5000 meters
  • (adjective) resembling an abyss in depth; so deep as to be unmeasurable