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“phonautograph”
phonautograph
1. An apparatus for automatically recording the vibrations of sound, including the voice, by means of a membrane set in vibration by the sound-waves, and having a point attached which makes a tracing upon a revolving cylinder.
2. An instrument where by a sound can be made to produce a visible record of itself.
2. An instrument where by a sound can be made to produce a visible record of itself.
This entry is located in the following units:
auto-, aut-
(page 23)
phon-, phono-, -phone, -phonia, -phonic, -phonetic, -phonous, -phonically, -phonetically, -phony +
(page 10)