noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A device, consisting essentially of an electric arc and a camera, by which a series of photographs of the variations of the arc due to sound waves are obtained for reproduction by means of a selenium cell and a telephone. dated

Etymology

Blend of photograph + -phone.

Related phrases

sound wave

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.