visible speech

Noun
  1. A phonetic alphabet invented by Melville Bell in the 19th century (synset 106512630)
    is a type of: phonetic alphabet, sound alphabet - an alphabet of characters intended to represent specific sounds of speech
  2. Spectrogram of speech;
    Speech displayed spectrographically (synset 104546054)
    is a type of: spectrogram, spectrograph - a photographic record of a spectrum

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