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estuary
3 dictionary results for: Estuaries
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
es·tu·ar·y       [es-choo-er-ee] Pronunciation Key
–noun, plural -ar·ies.
1.that part of the mouth or lower course of a river in which the river's current meets the sea's tide.
2.an arm or inlet of the sea at the lower end of a river.

[Origin: 1530–40; < L aestuārium channel, creek, inlet, equiv. to aestu(s) tide + -ārium -ary]

es·tu·ar·i·al       [es-choo-air-ee-uhl] Pronunciation Key, adjective
American Heritage Dictionary - Cite This Source - Share This
es·tu·ar·y       (ěs'chōō-ěr'ē)  Pronunciation Key 
n.   pl. es·tu·ar·ies
  1. The part of the wide lower course of a river where its current is met by the tides.
  2. An arm of the sea that extends inland to meet the mouth of a river.


[Latin aestuārium, from aestus, tide, surge, heat.]

es'tu·ar'i·al (-âr'ē-əl) adj.
The American Heritage Science Dictionary - Cite This Source - Share This
estuary       (ěs'ch-ěr'ē)  Pronunciation Key 
  1. The wide lower course of a river where it flows into the sea. Estuaries experience tidal flows and their water is a changing mixture of fresh and salt.
  2. An arm of the sea that extends inland to meet the mouth of a river.

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