Noun: lagoon lu'goon
- A body of water cut off from a larger body by a reef of sand or coral
"The calm waters of the lagoon were perfect for snorkeling";
- laguna, lagune [rare]
- An artificial pool for treating sewage or industrial waste
"The wastewater treatment plant uses a series of lagoons to purify the effluent"
- [N. Amer] A small freshwater lake near a larger lake or river
"We went fishing in the lagoon connected to the main river"
Derived forms: lagoons
Type of: lake
Encyclopedia: Lagoon