|Noah Webster's Dictionary|
(adv.) Down the stream; as, floating downstream.
Downstream (1 Occurrence)
Joshua 3:13 And it shall come to pass, when the soles of the feet of the priests that bear the ark of the LORD, the Lord of all the earth, shall rest in the waters of the Jordan, that the waters of the Jordan shall be cut off, even the waters that come down from above; and they shall stand in one heap.' (See NIV)