DictionarylagoonWastewater pond
noun

lagoon

An artificial pond for holding or treating wastewater or industrial liquids.

The treatment plant uses a lagoon to hold wastewater.

Etymology

The artificial basin borrows the natural landform’s name. It retains the idea of a broad, contained body of water while changing its origin and purpose.

More examples

  • Workers inspect the lagoon for leaks.
  • Bacteria in the lagoon help break down waste.
  • The factory stores liquid waste in lined lagoons.

Forms

lagoon · lagoons

Similar words

pond
A broader term for small bodies of water, including natural ones.
basin
A broader term for a depression or structure holding liquid.