from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An instrument for measuring the force or volume of inspiration or expiration in the lungs.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A device used to measure the force of inspiration or expiration of a person's lungs.

from the GNU version of the Collaborative International Dictionary of English

  • n. An instrument for measuring the amount of force exerted by the lungs in respiration.

from The Century Dictionary and Cyclopedia

  • n. An instrument for measuring the quantity of air inhaled into the lungs at a single inspiration and given out at a single expiration; a pulmometer; a spirometer. Also called pneumometer, pneumonometer.


pneumato- + -meter (Wiktionary)


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