ləˈɡu:n n. 1 a
stretch of
salt water separated
from the sea by a low
sandbank,
coral reef, etc. 2 the enclosed water of an
atoll. 3
US, Austral., & NZ a
small freshwater lake
near a larger lake or
river. 4 an
artificial pool
for the
treatment of
effluent or to
accommodate an
overspill from
surface drains
during heavy rain. [F lagune or
It. &
Sp. laguna f. L
lacuna: see LACUNA]