hydrophone

noun

hy·​dro·​phone ˈhī-drə-ˌfōn 

: an instrument for listening to sound transmitted through water

Examples of hydrophone in a Sentence

Recent Examples on the Web

The feat required a small armada of instruments—acoustic transponders, pressure gauges, hydrophones (underwater seismic microphones) and geodetic beacons—deployed across a tectonically active stretch of a mid-ocean ridge. — Sam MacDonald, Scientific American, 8 July 2026

The other striking thing is that some of the events occurred without an obvious indication of tectonic signals picked up by the hydrophones present. — John Timmer, ArsTechnica, 8 July 2026

This could include cameras, radars, hydrophones, electronic warfare (EW) packages, communications relays, etc. — Christopher McFadden, Interesting Engineering, 16 May 2026

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

Word History

First Known Use

1860, in the meaning defined above

Rhymes for hydrophone

• acetone
• anglophone
• baritone
• bourguignon
• buspirone
• chaperon
• chaperone
• cobblestone
• collarbone
• cornerstone
• cortisone
• dictaphone

Kids Definition

hydrophone

noun

hy·​dro·​phone ˈhī-drə-ˌfōn 

: an instrument for listening to sound transmitted through water