See Also: phonautograph(medicine)
phonautograph(dictionary)
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Medicine Lodge Memorial Hospital- Medicine Lodge(health)
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medicine(1)(dictionary)
medicine(2)(dictionary)
medicine(dictionary)
medicine man(encyclopedia)
medicine(encyclopedia)

phonautograph (medicine)


phonautograph
<physics> An instrument by means of which a sound can be made to produce a visible trace or record of itself. It consists essentially of a resonant vessel, usually of paraboloidal form, closed at one end by a flexible membrane. A stylus attached to some point of the membrane records the movements of the latter, as it vibrates, upon a moving cylinder or plate.

Origin: Phono- + Gr. Self + -graph.

Source: Websters Dictionary