phonendoscope

/ fəˈnɛndəˌskəʊp /

noun

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

Word History and Origins

Origin of phonendoscope¹

C20: from phono- + endo- + -scope

Example Sentences

The binaural stethoscope was invented by Cammann in 1854, and a later improvement is the phonendoscope, by Bianchi.

From Project Gutenberg