stethometer

[ste-thom-i-ter]

noun

an instrument for measuring the expansion of the chest and abdomen during respiration.

Origin of stethometer

First recorded in 1840–50; stetho- + -meter

Related formssteth·o·met·ric

[steth-uh-me-trik] /ˌstɛθ əˈmɛ trɪk/, adjectiveste·thom·e·try, noun