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photophone

noun
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pho·​to·​phone

Definition of photophone

: a device whereby a sound signal (as a voice) is transmitted by causing it to modulate a beam of visible or infrared light which is received by a photoelectric cell, amplified, and reconverted into sound

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History and Etymology for photophone

phot- + -phone

Learn More About photophone

Dictionary Entries Near photophone

photophobic

photophone

photophore

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Statistics for photophone

Cite this Entry

“Photophone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photophone. Accessed 1 Jul. 2022.

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