expiratory

/ɪkˈspaɪrəˌtɔri/
adjective
  1. Relating to the act of breathing out or exhalation.
    • The expiratory muscles help push air out of the lungs.
    • Doctors listen for expiratory wheezes to diagnose asthma.
    • Expiratory reserve volume is the amount of air you can forcefully exhale after a normal breath.
What does "expiratory" mean? | whatsthatwordmean | whatsthatwordmean