: an instrument for measuring the air entering and leaving the lungs (as in determining lung function in the diagnosis of pulmonary disease)

Examples of spirometer in a Sentence

Recent Examples on the Web
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Lastly a device known as a spirometer measures the volume of gas expelled by the lungs on each breath, to monitor breathing patterns. The Physics Arxiv Blog, Discover Magazine, 24 Mar. 2020 In the games used in the study, which were built by students at Champlain College in Vermont, a device for measuring lung capacity called a spirometer is used as a controller. Veronique Greenwood, Discover Magazine, 2 May 2011

Word History

Etymology

International Scientific Vocabulary spiro- (from Latin spirare to breathe) + -meter

First Known Use

1809, in the meaning defined above

Time Traveler
The first known use of spirometer was in 1809

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Cite this Entry

“Spirometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spirometer. Accessed 11 Mar. 2025.

Medical Definition

spirometer

noun
: an instrument used in spirometry for measuring the air entering and leaving the lungs

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