spirometer
spi·ro·me·ter
noun
1.
a measuring instrument for measuring the vital capacity of the lungs
Origin
From Latin spīro (“to breathe”) + English -meter.
Related words
Word family
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.