hydrophone

[ hahy-druh-fohn ]
/ ˈhaɪ drəˌfoʊn /

noun

a device for locating sources of sound under water, as for detecting submarines by the noise of their engines.
an instrument employing the principles of the microphone, used to detect the flow of water through a pipe.
Medicine/Medical. an instrument used in auscultation, whereby sounds are intensified through a column of water.

Origin of hydrophone

First recorded in 1855–60; hydro-1 + -phone

Example sentences from the Web for hydrophone

British Dictionary definitions for hydrophone

hydrophone
/ (ˈhaɪdrəˌfəʊn) /

noun

an electroacoustic transducer that converts sound or ultrasonic waves travelling through water into electrical oscillations

Scientific definitions for hydrophone

hydrophone
[ hīdrə-fōn′ ]

A device used to detect or monitor sound under water. Hydrophones are often installed or towed in arrays that can be used to pinpoint a sound source or provide sea-floor imaging as part of a sonar system.