The Collaborative International Dictionary
Bronchophony
Bronchophony \Bron*choph"o*ny\, n. [Gr. ? windpipe + ? sound.] A modification of the voice sounds, by which they are intensified and heightened in pitch; -- observed in auscultation of the chest in certain cases of intro-thoracic disease.
Wiktionary
bronchophony
n. (context pathology English) A modification of the voice sounds observed in auscultation of the chest; used as a diagnostic test
Wikipedia
Bronchophony
Bronchophony, also known as bronchiloquy, is the abnormal transmission of sounds from the lungs or bronchi. Bronchophony is a type of pectoriloquy.
It is a general medical sign detected by auscultation.