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Meaning of lagoon

la•goon

Pronunciation: (lu-gn'), [key]
— n.
  1. an area of shallow water separated from the sea by low sandy dunes. Cf. laguna.
  2. any small, pondlike body of water, esp. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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