capnometer

noun

cap·​nom·​e·​ter kap-ˈnä-mə-tər How to pronounce capnometer (audio)
: a monitoring device that measures and numerically displays the concentration of carbon dioxide in exhaled air compare capnograph

Word History

Etymology

capno- (in capnograph) + -meter

First Known Use

1983, in the meaning defined above

Time Traveler
The first known use of capnometer was in 1983

Rhymes for capnometer

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Browse Nearby Words

capnograph
capnometer
cap nut
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Cite this Entry

“Capnometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/capnometer. Accessed 31 Oct. 2025.

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Medical Definition

capnometer

noun
cap·​nom·​e·​ter kap-ˈnäm-ə-tər How to pronounce capnometer (audio)
: a monitoring device that measures and numerically displays the concentration of carbon dioxide in exhaled air compare capnograph
capnometry
-trē How to pronounce capnometer (audio)
noun
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