audiphone

[ aw-duh-fohn ]

/ ˈɔ dəˌfoʊn /

a kind of diaphragm held against the upper teeth to assist hearing by transmitting sound vibrations to the auditory nerve.

Origin of audiphone

1875–80, Americanism; audi(o)- + -phone, modeled on telephone

Grantline's voice in my audiphone broke my despairing thoughts.

Brigands of the Moon |Ray Cummings
Every session of the Conference saw Miss Ellis seated in the front pew, audiphone in hand, eagerly intent on the exercises.

Miss Ellis's Mission |Mary P. Wells Smith
I felt at that moment, under the shirt against my skin, the anode of my audiphone tingling.

Wandl the Invader |Raymond King Cummings
An audiphone buzzer interrupted him, a call from the duty man in the instrument room of the nearby building.

Astounding Stories of Super-Science April 1930 |Various

Audiphone, an acoustic instrument by means of which deaf persons are enabled to hear.

The New Gresham Encyclopedia. Vol. 1 Part 3 |Various

audiphone

/ (ˈɔːdɪˌfəʊn) /

a type of hearing aid consisting of a diaphragm that, when placed against the upper teeth, conveys sound vibrations to the inner ear