hydrophone

noun
hy·​dro·​phone | \ ˈhī-drə-ˌfōn How to pronounce hydrophone (audio) \

Definition of hydrophone

: an instrument for listening to sound transmitted through water

Examples of hydrophone in a Sentence

Recent Examples on the Web

Dropping a hydrophone in the water is a passive approach. Rebecca Asoulin, The Christian Science Monitor, "Wait, fish make noise? Meet the ‘fish listeners.’ (audio)," 29 Aug. 2019 Researchers will use some combination of hydrophones, sonar, cameras and other sensors to study and record the organisms’ behavior. Allie Wilkinson, Scientific American, "Military Tries Out Fish as Underwater Spies," 29 Mar. 2019 Amidst a group of 30 or so whales, vocalization expert Rebecca Wellard towed a hydrophone behind the boat to record Type D calls. David Grossman, Popular Mechanics, "Scientists Spot Mysterious Unknown Breed of Killer Whales," 8 Mar. 2019 Cameras mounted on the hydrophone captured pictures of the rare whales. David Grossman, Popular Mechanics, "Scientists Spot Mysterious Unknown Breed of Killer Whales," 8 Mar. 2019 This includes: kayaks, Zodiacs and glass-bottom boats; scuba and snorkeling gear; video cameras for recording encounters with whale sharks; and hydrophones for listening to whales. Mark Childress, WSJ, "The Debate Over Cruise Vacations: Wonderful or Torturous?," 14 Aug. 2018 Qin allegedly falsely claimed the equipment — 78 hydrophones worth more than $100,000 — was intended for a Chinese university and filed falsified documents to bypass federal controls, authorities allege. John R. Ellement, BostonGlobe.com, "Wellesley man arrested in alleged export plot tied to marine equipment," 6 July 2018 The Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization, for example, maintains a global network of 11 stations that use hydrophones to listen for waves that might reveal an underground nuclear test. Bryn Nelson /, NBC News, "Our tsunami warning system is faulty. Can these scientists fix it?," 17 May 2018 Underwater noise recorded by the hydrophones – including whistles, pulsed calls and percussive sounds – indicated there was probably ramming happening beneath the surface as well, Towers said. Author: Amy B Wang, Anchorage Daily News, "‘Fascinated and horrified’ scientists watched as a killer whale drowned another’s newborn calf," 3 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydrophone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hydrophone

1860, in the meaning defined above

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