estuary

noun

es·​tu·​ary ˈes-chə-ˌwer-ē How to pronounce estuary (audio)
ˈesh-
plural estuaries
: a water passage where the tide meets a river current
especially : an arm of the sea at the lower end of a river

Did you know?

A partly enclosed coastal body of water in which river water is mixed with seawater is called an estuary. An estuary is thus defined by salinity rather than geography. Many coastal features designated by other names are in fact estuaries (for instance, Chesapeake Bay). Some of the oldest continuous civilizations have flourished in estuarine environments (for example, the Tigris and Euphrates rivers, the Nile delta, and the Ganges delta). Cities such as London (Thames River), New York (Hudson River), and Montreal (St. Lawrence River) developed on estuaries and became important commercial centers.

Examples of estuary in a Sentence

the city sits on the shores of a deep estuary where the Hudson River meets the Atlantic Ocean
Recent Examples on the Web On March 2, at around 1 a.m., a drone flew over the estuary, entered their neighborhood and crashed into their building, according to Lt. Col. Serhii Sudets, a member of the air defense units protecting Odesa. Constant Méheut Oksana Parafeniuk, New York Times, 9 Apr. 2024 Both state and federal water projects pull water out of the beleaguered estuary and ship it south, primarily to reservoirs for farms in the San Joaquin Valley. Ari Plachta, Sacramento Bee, 8 Apr. 2024 There is no debate that crime on the estuary has fallen since that acute period 8 months ago. Will McCarthy, The Mercury News, 2 Apr. 2024 Tributaries and estuaries can create a bottleneck for the swimming juveniles, which provides those studying them an opportunity to catch, count, and release the eels to get an idea of population trends that can inform larger scientific studies. Laura Baisas, Popular Science, 13 Mar. 2024 Today, there are 25 sites, including the Milwaukee estuary, remaining on the U.S. side. Caitlin Looby, Journal Sentinel, 22 Jan. 2024 The taste is described on Monsoon Chocolate's website as fudge and salted plum, made with a distinctive salt harvested from an estuary where the Sonoran Desert meets the Sea of Cortez. Endia Fontanez, The Arizona Republic, 23 Jan. 2024 The reason was an earth wall—known as a bund, built more than half a century ago where the estuary of the local river meets the sea—that blocked off incoming seawater to transform the saltwater wetlands into a ponded freshwater pasture for cattle farming. Bianca Nogrady, WIRED, 19 Mar. 2024 Overlooking Boston Harbor, the museum has a stunning view of the estuary. Lauren Sloss, San Diego Union-Tribune, 26 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'estuary.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Latin aestuarium, from aestus boiling, tide; akin to Latin aestas summer — more at edify

First Known Use

1538, in the meaning defined above

Time Traveler
The first known use of estuary was in 1538

Dictionary Entries Near estuary

Cite this Entry

“Estuary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/estuary. Accessed 26 Apr. 2024.

Kids Definition

estuary

noun
es·​tu·​ary ˈes-chə-ˌwer-ē How to pronounce estuary (audio)
plural estuaries
: a passage where the tide meets a river current
especially : an arm of the sea at the lower end of a river
estuarine
ˈes-chə-wə-ˌrīn
adjective

More from Merriam-Webster on estuary

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