Definition of hydrophone
: an instrument for listening to sound transmitted through water
Recent Examples of hydrophone from the Web
We humans can generally only hear this pop music by using hydrophones (underwater microphones), but fish and crustaceans use it to find their way back to their homes.
Jen Levine, the stranding operations and animal care manager for the Channel Islands Marine and Wildlife Institute, says rescuers plan to use a hydrophone that plays underwater whale sounds to guide the whale out of the harbor.
Maritime search experts say acoustic hydrophones must be towed in the water at depths of up to 2,000 meters in order to have the best chance of picking up the signals.
Then the researchers come back and beam a particular sound into the water that, when picked up by the pop-up’s hydrophone, causes the device to detach from its anchor and float to the surface.
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.
First Known Use of hydrophone
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