Adjacent Words

cofferdam definitions

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WordNet (r) 3.0 (2005)

n
1: large watertight chamber used for construction under water [syn: caisson, pneumatic caisson, cofferdam]

Merriam Webster's

noun Date: 1736 1. a watertight enclosure from which water is pumped to expose the bottom of a body of water and permit construction (as of a pier) 2. a watertight structure for making repairs below the waterline of a ship

Webster's 1913 Dictionary

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.