line indicating how high water has reached on the side of a ship; waterlevel, watermark
Search Dictionary
Water-line Definition from Language, Idioms & Slang Dictionaries & Glossaries
Any one of several lines marked upon the outside of a vessel, corresponding with the surface of the water when she is afloat on an even keel. The lowest line indicates the vessel's proper submergence when not loaded, and is called the light water line; the highest, called the load water line, indicates her proper submergence when loaded.
Any one of certain lines of a vessel, model, or plan, parallel with the surface of the water at various heights from the keel.
water line
\wa"ter line`\ (?).
1. (shipbuilding) any one of certain lines of a vessel, model, or plan, parallel with the surface of the water at various heights from the keel.
note: in a half-breadth plan, the water lines are outward curves showing the horizontal form of the ship at their several heights; in a sheer plan, they are projected as straight horizontal lines.
2. (naut.) any one of several lines marked upon the outside of a vessel, corresponding with the surface of the water when she is afloat on an even keel. the lowest line indicates the vessel's proper submergence when not loaded, and is called the light water line; the highest, called the load water line, indicates her proper submergence when loaded.
Noun
1. 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
(synonym) waterline, water level
(hypernym) line
(hyponym) load line, Plimsoll line, Plimsoll mark, Plimsoll
2. a line marking the level reached by a body of water
(synonym) watermark
(hypernym) line
(hyponym) high-water mark
Water-line Definition from Encyclopedia Dictionaries & Glossaries
The term "waterline" generally refers to the line where the hull of a ship meets the water surface. It is also the name of a special marking, also known as the national Load Line or Plimsoll Line, to be positioned amidships, that indicates the draft of the ship and the legal limit to which a ship may be loaded for specific water types and temperatures. Temperature affects the level because warm water provides less buoyancy, being less dense than cold water. The salinity of the water also affects the level, fresh water being less dense than salty seawater. This marking was invented in the 1870s by Samuel Plimsoll.
| See more at Wikipedia.org... |
Water-line Definition from Sports Dictionaries & Glossaries
The line made by the water's edge when a ship has her full proportion of stores, &c. on board.
Water-line Definition from Society & Culture Dictionaries & Glossaries
(Nautical) (1) The line on the hull of a ship to which the surface of the water rises. (2) Any of several lines parallel to this line, marked on the hull of a ship, and indicating the depth to which the ship sinks under various loads. (3) A pipeline carrying water. (4) A line marked on a structure or gage to indicate water depth. May be more specifically referred to as a high water line or a low water line when measuring water depths.
