phonautograph

English dictionary entry

Meanings

noun
  1. A device for recording sound vibrations in a visible form.

Pronunciation

/fənɔːtəɡɹɑːf/ /fənɔtəɡɹæf/ /fənɑtəɡɹæf/

Word forms

phonautograph phonautographs

Etymology

From phono- + auto- + -graph.

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