tidal basin

American  

noun

1. an artificial body of water open to a river, stream, etc., subject to tidal action.

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tidal basin British  

noun

1. a basin for vessels that is filled at high tide

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tidal basin Scientific  

1. An area that holds water during high tide, especially a body of water in an area subject to tides whose water level is maintained at a desired level by artificial means.

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Etymology

Origin of tidal basin

First recorded in 1855–60