the waterline

noun
Updated on: 15 Nov 2017

Definition of the waterline

: the level that water reaches on the side of a ship
  • We repaired the hull below the waterline.

Word by Word Definitions

waterline play
  1. : a line that marks the level of the surface of water on something: such as

  2. : the point on the hull of a ship or boat to which the water rises

  3. : a line marked on the outside of a ship that corresponds with the water's surface when the ship is afloat on an even keel under specified conditions of loading


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