Sealock

name, noun

Definitions

Proper Noun
  1. 1
    A surname.
Noun
  1. 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.

    "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, […]"

Etymology

From sea + lock.

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