- 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.Compare load line, Plimsoll line.
- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for water line
It left the ship glistening from trucks to water-line, and with darkened sails.The Nigger Of The "Narcissus"
"It may be a low-lying cloud on the water-line of the horizon," Teddy added.Boy Scouts on Hudson Bay
G. Harvey Ralphson
The lance tore through just above the water-line of Red Dick's steamer.Sonnie-Boy's People
James B. Connolly
The water-line is strewn with cast-off salmon heads and entrails.Over the Rocky Mountains to Alaska
Charles Warren Stoddard
Presently it was seen that she had been hit below the water-line.Lectures on the French Revolution
John Emerich Edward Dalberg-Acton
- 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