Dictionary.com

cofferdam

[ kaw-fer-dam, kof-er- ]
/ ˈkɔ fərˌdæm, ˈkɒf ər- /
Save This Word!

noun
a watertight enclosure placed or constructed in waterlogged soil or under water and pumped dry so that construction or repairs can proceed under normal conditions.
Nautical. a sealed void between two bulkheads, as for insulation or as an extra barrier to the escape of liquids or vapors.
QUIZ
QUIZ YOURSELF ON "IS" VS. "ARE"
"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."
Question 1 of 7
IS and ARE are both forms of which verb?

Origin of cofferdam

First recorded in 1730–40; coffer + dam1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use cofferdam in a sentence

British Dictionary definitions for cofferdam

cofferdam
/ (ˈkɒfəˌdæm) /

noun
a watertight structure, usually of sheet piling, that encloses an area under water, pumped dry to enable construction work to be carried out. Below a certain depth a caisson is required
(on a ship) a compartment separating two bulkheads or floors, as for insulation or to serve as a barrier against the escape of gas or oil
Often shortened to: coffer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK