ther·​mo·​phone | \ ˈthərməˌfōn \

Definition of thermophone

1 : a portable telethermometer using a telephone in connection with a differential thermometer
2 : a telephone involving heat effects (as changes in temperature) due to pulsations of the line current in a fine wire connected with the receiver diaphragm

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History and Etymology for thermophone

International Scientific Vocabulary therm- + telephone

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Cite this Entry

“Thermophone.” Dictionary, Merriam-Webster, Accessed 24 Nov. 2020.

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