Phonautograph is a 13 letter word which starts with the letter P and ends with the letter H for which we found 1 definitions.
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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. |