cofferdam

play
noun cof·fer·dam \ˈkȯ-fər-ˌdam, ˈkä-\

Definition of cofferdam

  1. 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. 2 :  a watertight structure for making repairs below the waterline of a ship

Recent Examples of cofferdam from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cofferdam.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of cofferdam

1coffer + 2dam


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