The Collaborative International Dictionary
Pneumograph
Pneumograph \Pneu"mo*graph\, n. Same as Pneumatograph.
Wiktionary
pneumograph
n. (alternative form of pneumatograph English)
Wikipedia
Pneumograph
A pneumograph, also known as a pneumatograph or spirograph, is a device for recording velocity and force of chest movements during respiration.
Usage examples of "pneumograph".
Hallion, the pneumograph of Marey, the sphygmometer of Cheron, and so many others which have come in fashion during these latter years, we have succeeded in proving experimentally that joy, sadness, and pain depend upon our energy.