Source : Webster's Revised Unabridged Dictionary (1913)

Riparian \Ri*pa"ri*an\, a. [L. riparius, fr. ripa a bank. See
   {River}, and cf. {Arrive}.]
   Of or pertaining to the bank of a river; as, riparian rights.

Source : WordNet®

riparian
     adj : of or relating to or located on the banks of a river or
           stream; "riparian land"