R1I1P3A1R1I1A1N1
10 points
RIPARIAN is validvalid
pertaining to the bank of a river [adj]
of or inhabiting a riverbank, also RIPARIAL [adj] / an owner of land bordering a river [n -S]
pertaining to the bank of a river [adj]
of or inhabiting a riverbank, also RIPARIAL [adj] / an owner of land bordering a river [n -S]