'Spirometer' definitions:
Definition of 'spirometer'
From: WordNet
noun
A measuring instrument for measuring the vital capacity of the lungs
Definition of 'Spirometer'
From: GCIDE
- Spirometer \Spi*rom"e*ter\, n. [L. spirare to breathe + -meter.] 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. [1913 Webster]