estuary - meaning and definition. What is estuary
Online Dictionary

What (who) is estuary - definition

Tidal estuary; Estuaries; Estuarial; Estuarine; The Estuary; Estury; Tidal estuaries; Inverse estuary; Salt wedge; Salt wedge (hydrology); Bar-built estuary
  • Estuary mouth
  • Darwin]], [[Northern Territory]], Australia
  • [[River Exe]] estuary
  • 250px
  • Amazon]] estuary
  • A general video on [[Natura 2000]] estuaries in [[Wales]]; 2015
  • New York–New Jersey Harbor Estuary]]
  • [[Río de la Plata]] estuary
  • Paravur]] near the city of [[Kollam]], India
  • Example of a whitefish
  • Estuary mouth of the [[Yachats River]] in [[Yachats, Oregon]]

¦ noun (plural estuaries) the tidal mouth of a large river.
estuarial adjective
estuarine -r??n adjective
C16: from L. aestuarium 'tidal part of a shore', from aestus 'tide'.
An estuary is the wide part of a river where it joins the sea.
...naval manoeuvres in the Clyde estuary.
Frith, firth, fiord, inlet, creek, arm of the sea.



An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world.

Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, harbors, lagoons, inlets, or sounds, although some of these water bodies do not strictly meet the above definition of an estuary and could be fully saline.

Many estuaries suffer degeneration from a variety of factors including soil erosion, deforestation, overgrazing, overfishing and the filling of wetlands. Eutrophication may lead to excessive nutrients from sewage and animal wastes; pollutants including heavy metals, polychlorinated biphenyls, radionuclides and hydrocarbons from sewage inputs; and diking or damming for flood control or water diversion.

Pronunciation examples for estuary
1. the estuary.
Leadership and Nation Building _ Pat Utomi _ Talks at Google
2. effectively an estuary.
Happiness Quantified _ George MacKerron _ Talks at Google
3. the great estuary,
4. and the estuary.
Mudlarking - Lost and Found on the River Thames _ Lara Maiklem _ Talks at Google
5. the 850 square-mile estuary.
Examples of use of estuary
1. Beyond, the flat curving estuary of the River Deben.
2. There is also a slipway to the tidal Kingsbridge estuary.
3. Monica Almeida/The New York Times Tijuana River Estuary Opponents of the fence plan say it would create silt buildup in the estuary that could choke the life out of it.
4. The birds were washed into the sea via the Erme estuary.
5. "Because oi‘m wurf it," as she might say in her brutal Estuary accent.