hydrophone

noun

hy·​dro·​phone ˈhī-drə-ˌfōn How to pronounce hydrophone (audio)
: an instrument for listening to sound transmitted through water

Examples of hydrophone in a Sentence

Recent Examples on the Web
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Before, during, and after the birth, the researchers were recording the interactions of Unit A via hydrophones—basically, underwater microphones. Elizabeth Kolbert, New Yorker, 26 Mar. 2026 Our team attaches suction-cup hydrophones directly onto each dolphin’s melon – that is, its forehead. Laela Sayigh, The Conversation, 23 Mar. 2026 An onboard hydrophone even allows guests to hear the whales. Latifah Al Hazza, Condé Nast Traveler, 17 Mar. 2026 Though light levels are low at those depths, Fortune said cameras picked up the killer whales catching salmon, with clouds of blood billowing from their mouths, and hydrophones picked up the crunch of a kill. Katie Hunt, CNN Money, 15 Dec. 2025 See All Example Sentences for hydrophone

Word History

First Known Use

1860, in the meaning defined above

Time Traveler
The first known use of hydrophone was in 1860

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Cite this Entry

“Hydrophone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrophone. Accessed 1 Apr. 2026.

Kids Definition

hydrophone

noun
hy·​dro·​phone ˈhī-drə-ˌfōn How to pronounce hydrophone (audio)
: an instrument for listening to sound transmitted through water

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