tide lock

noun

1. a lock at the entrance to a tidal basin.

Word History and Origins

Origin of tide lock¹

First recorded in 1885–90

Example Sentences

At Eddyville the first lock, a tide-lock, bars the way, and here the horses and mules are kept.

From Project Gutenberg

The success of the half-tide lock at Richmond has been beyond all expectation.

From Project Gutenberg