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more about cofferdam
cofferdam |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Cofferdam \Cof"fer*dam\, n. 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 From WordNet r 1.6 [wn]: cofferdam n : large watertight chamber used for construction under water [syn: {caisson}, {pneumatic caisson}]
more about cofferdam