What does estuary mean?

Definitions for estuary
ˈɛs tʃuˌɛr ies·tu·a·ry

Here are all the possible meanings and translations of the word estuary.

Princeton's WordNet

  1. estuarynoun

    the wide part of a river where it nears the sea; fresh and salt water mix


  1. estuarynoun

    Coastal water body where ocean tides and river water merge.

  2. estuarynoun

    An ocean inlet also fed by fresh river water.

Webster Dictionary

  1. Estuarynoun

    a place where water boils up; a spring that wells forth

    Etymology: [L. aestuarium, from aestuare to surge. See Estuate.]

  2. Estuarynoun

    a passage, as the mouth of a river or lake, where the tide meets the current; an arm of the sea; a frith

    Etymology: [L. aestuarium, from aestuare to surge. See Estuate.]

  3. Estuaryadjective

    belonging to, or formed in, an estuary; as, estuary strata

    Etymology: [L. aestuarium, from aestuare to surge. See Estuate.]


  1. Estuary

    An estuary is a partly 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 subject to both marine influences, such as tides, waves, and the influx of saline water; and riverine influences, such as flows of fresh water and sediment. The inflows of both sea water and fresh water provide high levels of nutrients in both the water column and sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries were formed during the Holocene epoch by 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 by their geomorphological features or by water circulation patterns and can be referred to by 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 may be fully saline. The banks of many estuaries are amongst the most heavily populated areas of the world, with about 60% of the world's population living along estuaries and the coast. As a result, many estuaries are suffering degradation by many factors, including sedimentation from soil erosion from deforestation, overgrazing, and other poor farming practices; overfishing; drainage and filling of wetlands; eutrophication due 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.

Chambers 20th Century Dictionary

  1. Estuary

    es′tū-ar-i, n. the wide lower part of a river where it becomes tidal.—adjs. Estuā′rian, Es′tūarine. [L. æstuariumæstus, tide.]

Dictionary of Nautical Terms

  1. estuary

    An inlet or shoaly arm of the sea into which a river or rivers empty, and subject to tidal influence.

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  1. Chaldean Numerology

    The numerical value of estuary in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of estuary in Pythagorean Numerology is: 1

Images & Illustrations of estuary

  1. estuaryestuaryestuaryestuaryestuary

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    the work of inquiring into something thoroughly and systematically
    • A. temptation
    • B. rogue
    • C. value
    • D. investigating

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