Water line Meaning, Definition & Usage

  1. noun a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship
    water level; waterline.
  2. noun a line marking the level reached by a body of water
    watermark.

WordNet


Definitions
  1. (Shipbuilding), the outline of a horizontal section of a vessel, as when floating in the water.

Webster 1913