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See also: Estuary


Alternative forms[edit]


From Latin aestuarium (creek”, “estuary of a river).


  • (UK) IPA(key): /ˈɛstjʊəɹi/, /ˈɛst͡ʃʊəɹi/, /ˈɛst͡ʃəɹi/
  • (file)
  • (US) IPA(key): /ˈɛst͡ʃuˌɛɹi/


estuary (plural estuaries)

Estuary on Roggenplaat island
  1. A coastal water body where ocean tides and river water merge, resulting in a brackish water zone.
    • 2020 December 2, Paul Bigland, “My weirdest and wackiest Rover yet”, in Rail, page 65:
      There's something special about tidal estuaries, due to the abundance of wildlife and the ever-changing scenes as the water ebbs or rises. Throw in some moody skies and filtered sunlight, and the views can resemble a painting by Turner - only you don't have to go to the National Gallery to see this, it's brought to your seat on a train.
  2. An ocean inlet also fed by fresh river water.

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See also[edit]