pneu·mo·graph 
(nmə-grăf′, ny-) also pneu·mat·o·graph (n-mătə-grăf′, ny-)
(nmə-grăf′, ny-) also pneu·mat·o·graph (n-mătə-grăf′, ny-)n.
A device for recording the force and speed of chest movements during respiration.
pneu′mo·graphic adj.