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estuarine

American  
[es-choo-uh-rahyn, -er-in] / ˈɛs tʃu əˌraɪn, -ər ɪn /

adjective

  1. formed in an estuary.

  2. found in estuaries.


estuarine British  
/ -rɪn, ˈɛstjʊəˌraɪn /

adjective

  1. formed or deposited in an estuary

    estuarine muds

  2. growing in, inhabiting, or found in an estuary

    an estuarine fauna

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of estuarine

First recorded in 1840–50; estuar(y) + -ine 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Sub-adults usually occupy near-shore habitats, while juvenile bull sharks can be found in Fiji's river and estuarine systems.

From Science Daily • Mar. 17, 2026

The beach is also home to several diverse habitats, including riparian, estuarine, coastal dune and marine.

From Los Angeles Times • Mar. 18, 2024

Without available estuarine habitat, young fish may plunge into the saltwater before they’re ready, reducing their chances of survival.

From Seattle Times • Apr. 21, 2023

The saltwater, or estuarine, crocodile has lived for millions of years in Australia.

From New York Times • Aug. 15, 2022

Whether these are marine, lacustrine, or estuarine deposits, there is hardly sufficient evidence to show.

From Early Days in North Queensland by Palmer, Edward

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