phonendoscope

noun

an instrument that amplifies small sounds, esp within the human body

Word Origin for phonendoscope

C20: from phono- + endo- + -scope

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for phonendoscope

Historical Examples of phonendoscope

The binaural stethoscope was invented by Cammann in 1854, and a later improvement is the phonendoscope, by Bianchi.
The Progress of Invention in the Nineteenth Century.
Edward W. Byrn

phonendoscope in Medicine

phonendoscope

[fō-nĕn′də-skōp′]

A stethoscope that intensifies auscultatory sounds.