noun
exhalation
eks-huh-LAY-shuhn/ˌekshəˈleɪʃn/
The release of breath from the lungs.
The man's exhalation pushes the feather away from his mouth.

Etymology
The pieces describe the act of breathing outward. The Latin noun could also name the vapor breathed out, linking the action with what leaves the body.
In context
what they need to do is control the exhalation so they tend to purse their lips
More examples
- The doctor listens to my chest during inhalation and exhalation.
- Keep your exhalations slow and steady during the stretch.
- A long exhalation follows her deep breath.
Forms
exhalation · exhalations
exhale verb — To release breath from the lungs.
Similar words
- expiration
- Expiration names breathing out, especially in medical or physiological contexts.
- breathing
- Breathing includes both drawing air in and letting it out.