Meaning ofcofferdamin English

Noun

1. a temporary structure for dry bridge foundations
   The construction team built a cofferdam to support the bridge pillars.
2. a watertight enclosure for underwater construction; caisson
   A cofferdam was used to create a dry environment for the underwater tunnel construction.
3. a protective space between ship floors
   The ship's cofferdam provided a safe space between the floors in case of flooding.