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water line

or waterline

Nautical. the part of the outside of a ship's hull that is just at the water level.
Naval Architecture. any of a series of lines on the hull plans of a vessel representing the level to which the vessel is immersed or the bottom of the keel.
the line in which water at its surface borders upon a floating body.
water level (def 2).
Also called watermark. a line indicating the former level or passage of water:
A water line all around the cellar served as a reminder of the flood.
a pipe, hose, tube, or other line for conveying water.
Origin of water line
First recorded in 1615-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for water line
Contemporary Examples
Historical Examples
  • They walked as near the water line as they dared, because the sand was harder there.

    Cap'n Eri Joseph Crosby Lincoln
  • If the ship springs a leak below the water line, the water rushes in.

    Common Science Carleton W. Washburne
  • In her side, just at the water line, a black streak had suddenly appeared.

    The Black Buccaneer Stephen W. Meader
  • What will be the effect on its water line when passing into the ocean?

    Physics Willis Eugene Tower
  • It was placed 7-1/3' below the water line, 2-1/6' from the centre of the iron bottom.

  • It extended from 2' above the water line to within about 5' of the vessel's keel.

  • The shore along which they rowed was, at first, wooded to the water line.

    The Secret Cache E. C. [Ethel Claire] Brill
  • But one above and one below the water line will be sufficient.

    Farm Engines and How to Run Them James H. Stephenson
  • "She's pretty near the water line, that's right," admitted Carpenter.

    The Blazed Trail Stewart Edward White
British Dictionary definitions for water line

water line

a line marked at the level around a vessel's hull to which the vessel will be immersed when afloat
a line marking the level reached by a body of water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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