Babylonian, the current, broad-flowing, one of the “four heads” into which the river which watered the garden of Eden was divided (Gen. 2:11). Some identify it with the modern Phasis, others with the Halys, others the Jorak or Acampis, others the Jaab, the Indus, the Ganges, etc.
Easton’s Bible Dictionary
Pison
Name meaningchanging; extension of the mouth
Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.