sonar

noun

so·nar ˈsō-ˌnär

: a method or device for detecting and locating objects especially underwater by means of sound waves sent out to be reflected by the objects

also : a device for detecting the presence of a vessel (such as a submarine) by the sound it emits in water

Examples of sonar in a Sentence

They detected the submarine by using sonar.

Recent Examples on the Web

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Despite numerous sonar sweeps, nothing was found and K-129 was declared lost at sea. —

David Szondy, New Atlas, 4 Jan. 2025 Sharma was inspired by a study that came out of World War II, where the military tried to use sonar to locate German U-Boats. —

Paul Smaglik, Discover Magazine, 10 Dec. 2024 In the twentieth century, sonar technology increased, particularly during World War II when sound was used for navigating underwater, Hoy says. —

Emilie Le Beau Lucchesi, Discover Magazine, 13 Jan. 2025 Once the robot goes off for a swim, however, traditional wireless signals won’t work, but the dock has its own sonar that can talk to the robot at several bytes per second. —

IEEE Spectrum, 10 Jan. 2025 See all Example Sentences for sonar