depth finder

American  

[depth fahynd-er] / ˈdɛpθ ˌfaɪnd ər /

noun

1. a device that measures depth in water or ice, especially a sonic depth finder.

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depth finder Scientific  

/ dĕpth /

1. An instrument used to measure the depth of water, especially by radar, sonar, or ultrasound.

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Example Sentences

Heading into the West Waterway of the Duwamish earlier that evening, long streaks of red began to light up the screen of the blue depth finder aboard one of Muckleshoot’s fisheries department boats.

From Seattle Times • Aug. 11, 2023

The National Marine Manufacturers Association has seen confoundingly mixed results — a fish finder is excluded while a depth finder isn’t, for example.

From Salon • Jan. 9, 2020

On a recent research trip into Albemarle Sound off Roanoke to collect cores, he pointed to a depth finder that revealed perilously shallow water.

From Science Magazine • Jun. 6, 2018

While I was there, I went into a Cabela’s store in Fort Mill, S.C., to buy him a new depth finder for his fishing boat.

From New York Times • Apr. 2, 2018

Find the schools Use a depth finder or cast from the public docks in Norwich and points around the harbor to pinpoint fish.

From Time Magazine Archive