hydrophonic

comparative more hydrophonic · superlative most hydrophonic

1. By means of a hydrophone.

   Success for Operation Teardrop had come not from aircraft but from the tedious sonar and hydrophonic probing of the depths by surface ships.

   2013, Carl P. LaVO, Pushing the Limits: The Remarkable Life and Times of Vice Adm. Allan McCann, USN

   2 more examples

   Even the sophisticated sonar and hydrophonic devices which cover both the Atlantic and Pacific Oceans from shoreline to hundred of miles out to sea would be circumvented by this Trojan-Horse technique.

   2008, Patrick Cunningham, The Dusa Affair, page 55

   Although others may have been sunk earlier, the first submarine confirmed lost in consequence of hydrophonic detection was the German UC-49 on August 8, 1918.

   2009, Spencer Tucker, A global chronology of conflict