PHOTOPHONE


Meaning of PHOTOPHONE in English

ˈ ̷ ̷ ̷ ̷ˌfōn noun

Etymology: phot- + -phone

: 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

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.