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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.


Other Word Forms

  • interestuarine adjective
  • subestuarine adjective

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.

The estuarine crocodile, known in Australia as the saltwater crocodile, regularly moves between rivers and the open ocean, hunting wherever prey is available.

From Science Daily • Dec. 15, 2025

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

From Los Angeles Times • Mar. 18, 2024

In 1900, the area south of the mouth of the Duwamish River was mud and tidal flats, estuarine marsh, forested wetland, and meandering river.

From Seattle Times • Jan. 15, 2023

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

From New York Times • Aug. 15, 2022

Belugas have been reported from the Arctic Circle south as far as eastern Connecticut, typically in estuarine habitats, though they do range into oceanic regions.

From Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification by Caldwell, David