capnograph
noun
cap·no·graph ˈkap-nō-ˌgraf 
: a monitoring device that measures the concentration of carbon dioxide in exhaled air and displays a numerical readout and waveform tracing compare capnometer
capnographic
ˌkap-nō-ˈgra-fik
adjective capnographic monitoring
capnography
kap-ˈnä-grə-fē
noun 
Word History
Etymology
Greek kapnós "smoke, steam" (of which carbon dioxide is a component) + -o- + -graph
First Known Use
1964, in the meaning defined above
Medical Definition
capnograph
noun
cap·no·graph ˈkap-nō-ˌgraf
: a monitoring device that measures the concentration of carbon dioxide in exhaled air and displays a numerical readout and waveform tracing compare capnometer