An instrument for recording the movements of the tongue in speaking. ... Origin: Glosso-+ G. Grapho, to write ... (05 Mar 2000) ... 
(glos´o-graf) an apparatus for registering tongue movements in speech.
Type: Term Pronunciation: glos′ō-graf Definitions: 1. An instrument for recording the movements of the tongue in speaking.
glossograph An instrument for recording the tongue's movements during speech.