phonautograph
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English
[edit]
Etymology
[edit]From phono- + auto- + -graph.
Pronunciation
[edit]- (Received Pronunciation) IPA(key): /fənɔːtəɡɹɑːf/
- (US) IPA(key): /fənɔtəɡɹæf/
- (cot–caught merger) IPA(key): /fənɑtəɡɹæf/
Noun
[edit]phonautograph (plural phonautographs)
- (historical) A device for recording sound vibrations in a visible form.