echo sounder

noun

: an instrument for determining the depth of a body of water or of an object below the surface by sound waves

Examples of echo sounder in a Sentence

Recent Examples on the Web
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The 1200 also had dimmable interior lights and even lights under the hull, along with an echo sounder for reading depths. Chloe Braithwaite, Robb Report, 2 May 2024 Over roughly 60,000 kilometers, researchers observed the mesopelagic zone by using echo sounders. WIRED, 9 Dec. 2023

Word History

First Known Use

1927, in the meaning defined above

Time Traveler
The first known use of echo sounder was in 1927

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Cite this Entry

“Echo sounder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/echo%20sounder. Accessed 2 Apr. 2025.

Kids Definition

echo sounder

noun
: an instrument used to find out the depth of a body of water or of an object below the surface by means of sound waves

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