thermophone (English, noun)
expansion: thermophone (plural thermophones)
Senses:
glosses: A form of transducer that generates sound waves of precise power.
glosses: A portable telethermometer, using a telephone in connection with a differential thermometer.
tags: historical
glosses: A telephone involving heat effects, as changes in temperature (hence in length) due to pulsations of the line current in a fine wire connected with the receiver diaphragm.
tags: historical
Forms:
form: thermophones
tags: plural