Audiphone

• (n.) An instrument which, placed against the teeth, conveys sound to the auditory nerve and enables the deaf to hear more or less distinctly; a dentiphone.
Found on http://thinkexist.com/dictionary/meaning/audiphone/

Audiphone

Au'di·phone noun [ Latin audire to hear + Greek ... sound.] An instrument which, placed against the teeth, conveys sound to the auditory nerve and enables the deaf to hear more or less distinctly; a dentiphone.
Found on http://www.encyclo.co.uk/webster/A/144

audiphone

audiphone 1. An instrument consisting of a diaphragm or plate that is placed against the teeth and conveys sound vibrations to the inner ear enabling persons with certain types of deafness to hear more or less distinctly. 2. A device used by individuals with certain types of hearing impairment which consists of a diaphragm that picks up vibrations...
Found on http://www.wordinfo.info/words/index/info/view_unit/248/3

Audiphone

The audiphone was an early hearing aid in use around 1900. It was an acoustic instrument by means of which deaf persons were enabled to hear. It consisted essentially of a fan-shaped plate of hardened caoutchouc, which was bent to a greater or less degree by strings, and was very sensitive to sound-waves. When used the up edge was pressed against t...
Found on http://www.probertencyclopaedia.com/browse/GA.HTM

Audiphone

The audiphone was an early hearing-aid invented by Rhodes and improved in 1880 by Colladon. It consisted of a thin sheet of hard ebonite rubber or cardboard placed next to the teeth through which and other bones sound vibrations are conveyed to the auditory nerve.
Found on http://www.probertencyclopaedia.com/browse/EA.HTM
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