riparian
/raɪˈpeərɪən/adjective
1- chiefly Law of, relating to, or situated on the banks of a river【主律】河岸的, 沿岸的：
all the riparian states must sign an agreement.
沿岸各州都必须签订一项协议。
1.1
- Ecology of or relating to wetlands adjacent to rivers and streams【生态】河滨湿地（或沼泽地）的。
词源
mid 19th cent.: from Latin riparius （from ripa 'bank'） + -AN.