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 (no͞o′mə-tăk′ə-grăf′, nyo͞o′-) or pneu·mo·tach·y·graph (-tabreve;k′ē-)
An apparatus for recording the rate of airflow to and from the lungs.

[pneumo- + Greek takhos, speed + -graph.]

pneu′mo·tach′o·graph′ic adj.
pneu′mo·ta·chog′ra·phy (-tə-kŏg′rə-fē) n.
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References in periodicals archive ?
A major change in objective measurements was produced by describing a spirometer by Hutchinson in 1846 [2], which together with pneumotachography, introduced by Fleisch in the 1920s, created a basis for future volume and flow measurements.
When done properly, the process of pneumotachography will produce accurate and precise flow and volume data for spirometry, diffusion capacity, lung volumes and exercise studies.
9%) (37); and third, the accuracy of respiratory parameters measured directly from the ventilator, compared with other methods such as pneumotachography.