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1. (n.) cofferdam
a temporary watertight enclosure for construction or repairs in waterlogged soil or under water.
2. cofferdam
a sealed void between two bulkheads that prevents the escape of liquids, heat, etc.
Etymology: (1730–40)
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| Definition of 'cofferdam' |
Princeton's WordNet |
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1. (noun) caisson, pneumatic caisson, cofferdam
large watertight chamber used for construction under water
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| Definition of 'cofferdam' |
Webster Dictionary |
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1. (noun) cofferdam
a water-tight inclosure, as of piles packed with clay, from which the water is pumped to expose the bottom (of a river, etc.) and permit the laying of foundations, building of piers, etc
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