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cofferdam
[ kaw-fer-dam, kof-er- ]
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.
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
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Word History and Origins
Origin of cofferdam1
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Example Sentences
And the night shift began to repair the cofferdam for old Jezebel had dropped suddenly back into her old trail.
The foundations were put down by means of a cofferdam which was kept dry by pumping.
Referring to the cost of cofferdam work, we see that, in order to excavate the 58 cu.
The lower part of C bulkhead was doubled and was in the form of a cofferdam.
A hand pump served to keep the cofferdam dry enough for excavating; but in more open material a power pump is usually required.
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