estuarial
/ˌɛstʃuˈɛriəl/
adjective
- Relating to an estuary (the tidal mouth of a large river, where fresh and salt water mix).
- The estuarial ecosystem supports a unique mix of fish and bird species.
- Pollution from upstream farms can damage the delicate estuarial environment.
- Many cities have developed around estuarial ports for trade and transportation.