hy·​dro·​phone | \ ˈhī-drə-ˌfōn \

Definition of hydrophone

: an instrument for listening to sound transmitted through water

Examples of hydrophone in a Sentence

Recent Examples on the Web

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 The scientists developed a new methodology that used hydrophones to count bowhead whales beneath the ice, rather than extrapolating the population based on a count of the visible bowheads passing by a single, ice-free locale. Krista Langlois, Smithsonian, "Why Scientists Are Starting to Care About Cultures Who Talk to Whales," 6 Apr. 2018 Elsewhere Winderen draws exclusively on sources from nature, such as the hydrophone recordings that constitute her 2016 piece The Wanderer, a 31-minute investigation of zooplankton and phytoplankton. Peter Margasak, Chicago Reader, "Norwegian artist Jana Winderen finds music hidden within natural sounds," 29 Mar. 2018 Other high-tech equipment planned includes a sound system using hydrophones, microphones that capture underwater sounds within a three-mile radius of the ship. Rosemary Mcclure, latimes.com, "Six more Ponant ships to be launched, all equipped with underwater lounges," 26 Mar. 2018 Bouncing back to the surface, the sound waves are detected by hydrophones hung from a series of cables being towed by the ship. Drew Broach, NOLA.com, "Bill to ease offshore oil, gas exploration advances in Congress," 13 Jan. 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.

See More

First Known Use of hydrophone

1860, in the meaning defined above

Keep scrolling for more

Learn More about hydrophone

Share hydrophone

Statistics for hydrophone

Look-up Popularity

Time Traveler for hydrophone

The first known use of hydrophone was in 1860

See more words from the same year

More from Merriam-Webster on hydrophone

Rhyming Dictionary: Words that rhyme with hydrophone

Britannica.com: Encyclopedia article about hydrophone

Comments on hydrophone

What made you want to look up hydrophone? Please tell us where you read or heard it (including the quote, if possible).


to settle judicially or to act as judge

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!