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(naval architecture)
The intersection of the surface of the water with the side of a ship.
A line painted on the hull of a ship showing the level of the water when the ship is properly trimmed.



(also shoreline), the line of contact between the water surface of a body of water—such as a lake, river, or sea—and a dry land surface, or shore. The height and shape of a waterline vary owing to fluctuations in the level and changes in the nature of the shore that result from erosion, abrasion, or human activity.


Inside a cistern, the highest water level to which the ball valve should be adjusted to shut off.

waterline (WL)

waterline (WL)
A system of aircraft location designation. The water line is the measurement of height in inches perpendicular from a horizontal plane located a fixed number of inches below the bottom of the aircraft fuselage.
References in periodicals archive ?
Residents will have access to The Waterline Club--which connects One, Two, and Three Waterline Square--a collection of indoor amenities available to all residents.
VistaTab is a tablet used for the cleaning of microbial contaminants in dental unit waterlines.
The contractor was also directed to re-excavate and compact the waterline trenches.
Although Waterline initially did not want a PBX located onsite, Whaleback Systems educated the company on the benefits of its managed service architecture.
John said before the race yesterday that we had a great chance of winning as the horse had been working very well, while David thought On The Waterline had gone backwards.
New Zealand's designers did this by making the hull flare out above the waterline, giving the gargantuan boat the look of an aircraft carrier with a mast and bowsprit.
Located within Two Waterline Square, the new Cipriani food hall will be designed by London-based interior designer Martin Brudnizki.
Their song Waterline is tipped as one of the best in the contest and John and Edward are hoping it can do better than Lipstick last year in eighth place.
30 December 2011 - UK kitchen manufacturer Crown Products (Kent) Ltd will make a takeover bid for sector player Waterline Group plc after increasing its current interest in it to nearly 78%, the target company said in a statement today.
It had been more years than I care to remember - probably in much the same way as Fusspot felt about his birthday - since I had last ventured into The Waterline on Newcastle Quayside.
Oldest sister Georgia Powell, middle sister Andrea Marshall and youngest sister Alex Marshall have taken on the lease at the Waterline, having previously worked together in the hospitality/catering trade for over 15 years, operating the Cafe in the Garden in Eldon Garden, Newcastle city centre.