1. a medical instrument used to measure the capacity and flow of air in the lungs
Usage: medical

Examples

• The doctor used a spirometer to test her lung function.
• Patients with asthma often undergo spirometer testing regularly.
• The spirometer showed that his breathing capacity had improved after treatment.
• She blew into the spirometer as hard as she could during the pulmonary function test.
• The respiratory therapist calibrated the spirometer before each patient examination.
• Results from the spirometer helped diagnose his chronic obstructive pulmonary disease.