Synonym: hypophonia. ... Origin: Lepto-+ G. Phone, sound, voice ... (05 Mar 2000) ... 
(lep″to-fo´ne-ә) hypophonia.
Type: Term Pronunciation: lep′tō-fō′nē-ă Synonyms: hypophonia
leptophonia, leptophonic 1. A weak voice; hypophonia. 2. An abnormally weak voice due to incoordination of the muscles concerned in vocalization. 3. A weak, thin quality of the voice, resulting from general debility or certain myopathic or neurologic conditions.