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lagoon

[luh-goon] /ləˈgun/
noun
1.
an area of shallow water separated from the sea by low sandy dunes.
Compare laguna.
2.
Also, lagune. any small, pondlike body of water, especially one connected with a larger body of water.
3.
an artificial pool for storage and treatment of polluted or excessively hot sewage, industrial waste, etc.
Origin
1605-1615
1605-15; earlier laguna (singular), lagune (plural) < Italian < Latin lacūna (singular), lacūnae (plural) ditch, pool, akin to lacus basin, lake1; see lacuna
Related forms
lagoonal, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for lagoon
  • It is sharing technical knowledge on sewage-lagoon management, water-quality monitoring, and recycling.
  • In summer, the lagoon bordering the central business district smells of sewage.
  • We lowered two red skiffs from our research vessel, loaded our diving gear, and sped off toward the lagoon.
  • Landscapers built a lagoon for koi carp and swans that would be sustained with reclaimed wastewater generated by guests.
  • The uneven stone rim and creeping vegetation enhance the lazy lagoon mood.
  • The streets huddle together, dark and dense, while all around laps the watery lagoon.
  • We'd been in the lagoon for a few hours, and the current kept us moving.
  • His patio features exotic furnishings, flamboyant plants, and the colors of a lush lagoon.
  • When the weekend weather is good during boating season, as many as a hundred boats try to visit the lagoon.
  • The first lagoon is bubbly and dark, with anaerobic bacteria digesting the organic matter to reduce odor.
British Dictionary definitions for lagoon

lagoon

/ləˈɡuːn/
noun
1.
a body of water cut off from the open sea by coral reefs or sand bars
2.
any small body of water, esp one adjoining a larger one
Also (rare) lagune
Word Origin
C17: from Italian laguna, from Latin lacūna pool; see lacuna
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
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Word Origin and History for lagoon
n.

1670s, lagune, earlier laguna (1610s), from French lagune or directly from Italian laguna "pond, lake," from Latin lacuna "pond, hole," from lacus "pond" (see lake (n.1)). Originally in reference to the region of Venice; applied 1769 (by Capt. Cook) to the lake-like stretch of water enclosed in a South Seas atoll. Also cf. -oon.

Online Etymology Dictionary, © 2010 Douglas Harper
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lagoon in Science
lagoon
  (lə-gn')   
  1. A shallow body of salt water close to the sea but separated from it by a narrow strip of land, such as a barrier island, or by a coral reef.

  2. A shallow pond or lake close to a larger lake or river but separated from it by a barrier such as a levee.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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