stethometer
Ste*thom"e*ter, n. Etym: [Gr. -meter.] (Physiol.) Defn: An apparatus for measuring the external movements of a given point of the chest wall, during respiration; -- also called thoracometer.
Ste*thom"e*ter, n. Etym: [Gr. -meter.] (Physiol.) Defn: An apparatus for measuring the external movements of a given point of the chest wall, during respiration; -- also called thoracometer.