sealock

See also: Sealock

English

Etymology

sea +‎ lock

Noun

sealock (plural sealocks)

  1. A lock that is positioned at the mouth of a canal or waterway so that, when the gates are closed, boats can be raised or lowered between the waterway and sea level.
    Synonym: tidal lock
    • 1809, Sir John Carr, Caledonian Sketches, Or, A Tour Through Scotland in 1807, page 224:
      At Corpach it is intended to form a sealock, to be cut out of the rock, and to make a small basin within it, capable of admitting a number of vessels with the flowing tide, which, after the gates are closed, may ascend the locks at leisure, […]
    • 1951, United States. Defense Mapping Agency. Hydrographic Center, Sailing Directions for the West Coast of Scotland: Mull of Galloway to Cape Wrath Including the Hebrides, page 127:
      All masters are prohibited from approaching the entrance to the sealocks when they observe a red flag flying […]
    • 2020, Clyde Cruising Club, Geoff Crowley, Firth of Clyde: Including Solway Firth and North Channel, page 77:
      Ardrishaig, situated about halfway up Loch Gilp on the west shore, marks the entrance to the Crinan Canal, which is entered through the sealock behind the breakwater.
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