waterstop

English

From water +‎ stop.

waterstop (plural waterstops)

(construction) A waterproof barrier that is used to prevent moisture from leaking through a joint.
- 2010, Center for Chemical Process Safety, Guidelines for Safe Warehousing of Chemicals, page 83:
  A waterstop, which is installed before pouring the concrete, may be effective in sealing joints, but is not applicable for cracks.
A location along a waterway where a water taxi, riverboat, or similar form of transportation makes a regular stop to load and unload passengers or cargo.
- 2009, Virginia Henley, The Raven and the Rose, page 292:
  The barge pulled up at the waterstop; she allowed the young men to leave first and then followed them up the incline to Greenwich Palace.