Definition of sounding line in English:

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sounding line

noun

A weighted line with distances marked off at regular intervals, used to measure the depth of water under a boat.
Example sentences
  • Eventually the Scientifics were able to predict, with a fair degree of accuracy, the nature of the bottom sediment merely by observing the depth at which the sounding line stopped paying out.
  • They had to be content with their sounding lines of piano wire.
  • Two years later, on the other side of the world, their sounding lines revealed a chasm in the western Pacific more than five miles deep.

For editors and proofreaders

Line breaks: sound|ing line

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