† osteophonen.
Obsolete. rare. Apparently only attested in dictionaries or glossaries.
A type of hearing aid utilizing bone conduction of sound.
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the world > health and disease > healing > audiology or audiometry > [noun] > aids to defective hearing
trunk1546
otacousticon1615
otacoustic1617
ear-spectacle1626
sarbacane1644
acoustic1659
acousticon1660
hearing-trumpet1725
ear trumpet1731
trumpet1774
otophone1839
auricle1864
audiphone1880
osteophone1892
microphonograph1897
hearing aid1922
deaf-aid1934
1892 New Sydenham Soc. Lexicon Osteophone, an instrument used by deaf persons by which sounds are conveyed to the auditory nerves through the cranial bones.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online June 2021).
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n.1892