Is “Cofferdam” a Scrabble word?
Yes
COFFERDAM
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Cofferdam
noun
1.A temporary watertight structure that is pumped dry to enclose an area underwater and allow construction work on a ship, bridge, or rig to be carried out; a caisson.
2.An empty space that acts as a protective barrier between two floors or bulkheads on a ship.