Aram-naharaim

Aram of the two rivers, is Mesopotamia [as it is rendered in (Gen 24:10)], the country enclosed between the Tigris on the east and the Euphrates on the west [(Ps 60:1 etc.), title]; called also the "field of Aram" [(Hos 12:12), R.V.] i.e., the open country of Aram; in the Authorized Version, "country of Syria." Padan-aram (q.v.) was a portion of this country.

EBD - Easton's Bible Dictionary