Phonautograph

Definition of Phonautograph

Pho`nau´to`graph
n.1.(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.
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Phoca
Phocacean
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Phocenin
Phocine
Phocodont
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Phoebe
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Phoenicopterus
Phoenix
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-Phonautograph-
Phone
Phoneidoscope
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phoney
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Phonographer
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