underwater telephone


Also found in: Acronyms.

underwater telephone

[¦ən·dər¦wȯd·ər ′tel·ə‚fōn]
(communications)
A method of voice communication using underwater sound as a means of transmission; it functions similarly to a conventional telephone system except that the energy is carried by sound waves in the water rather than by electrical signals through a wire.
References in periodicals archive ?
2 earthquake rattled the Grand Banks (Newfoundland) coast in 1929, a number of underwater telephone and telegraph cables lying within 100 kilometers of the epicenter suddenly snapped.
He joined the merchant navy in 1938 and, in 1941, aged 21, was made commander of the XE3 submarine and given the mission to disable two Japanese destroyers and to cut underwater telephone cables.
She was built by Cammell Laird in Birkenhead in 1943, commissioned in 1944 and involved in 1945 in Operation Foil, the cutting of underwater telephone cables between Singapore, Saigon, Hong Kong and Tokyo.

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