What is the meaning of Stethograph?

(n.) See Pneumatograph.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). stethograph. Retrieved September 21, 2026, from http://smartdefine.org/stethograph/definitions/2066408
ChicagoWebster's. 2011. "stethograph" http://smartdefine.org/stethograph/definitions/2066408 (accessed September 21, 2026).
HarvardWebster's 2011, stethograph, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/stethograph/definitions/2066408>.
MLAWebster's. "stethograph" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/stethograph/definitions/2066408>