visible speech

English Thesaurus

1. spectrogram of speech; speech displayed spectrographically (noun.artifact)

hypernym	:	spectrogram, spectrograph,
definition	:	a photographic record of a spectrum (noun.artifact)

2. a phonetic alphabet invented by Melville Bell in the 19th century (noun.communication)

hypernym	:	phonetic alphabet, sound alphabet,
definition	:	an alphabet of characters intended to represent specific sounds of speech (noun.communication)