photophonicadj.
/ˌfəʊtə(ʊ)ˈfɒnɪk/, U.S. /ˌfoʊdoʊˈfɑnɪk/ Now historical.
Relating to or produced by a photophone (photophone n. 1). Also figurative.
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society > communication > telecommunication > other types of sound telecommunication > [adjective]
telephonic?1835
photophonic1880
radiophonic1881
telephoned1890
sonar1943
1880 A. G. Bell in Athenæum 4 Dec. 747/3 (title) On methods of preparing selenium and other substances for photophonic experiments.
1882 Nature 16 Feb. 377/1 Yielding radiophonic and photophonic sounds when illuminated by intermittent beams of different kinds.
1921 G. B. Shaw Back to Methuselah iii. xxxiv. 126 My relations with her are purely telephonic, gramophonic, photophonic, and, may I add, platonic.
1983 New Scientist (BNC) 3 Mar. His [sc. Bell's] photophonic receiver was a lens which focused the modulated beam onto a very thin, hard rubber diaphragm... He replaced the diaphragm with a piece of light-sensitive selenium.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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adj.1880- nevermelting
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