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Tuesday, March 17th, 2026
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Bible Dictionaries
Phonautograph

Webster's Dictionary

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(n.) 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.

Bibliography Information
Webster, Noah. Entry for 'Phonautograph'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/phonautograph.html. 1828.
 
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