(n.) An instrument for measuring the vital capacity of the lungs or the volume of air which can be expelled from the chest after the deepest possible inspiration. Cf. Pneumatometer.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). spirometer. Retrieved September 21, 2026, from http://smartdefine.org/spirometer/definitions/2065030 |
| Chicago | Webster's. 2011. "spirometer" http://smartdefine.org/spirometer/definitions/2065030 (accessed September 21, 2026). |
| Harvard | Webster's 2011, spirometer, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/spirometer/definitions/2065030>. |
| MLA | Webster's. "spirometer" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/spirometer/definitions/2065030> |