exhalation

noun

ex·​ha·​la·​tion ˌeks-hə-ˈlā-shən 

ˌek-sə-

1

: something exhaled or given off : emanation

2

: an act of exhaling

Examples of exhalation in a Sentence

Recent Examples on the Web

Breathing in through your nose and out through the mouth, focus on each inhalation and exhalation. —Bryan Robinson, Forbes.com, 9 Aug. 2025

The researchers used aerosol sampling devices to test both cow exhalations and the ambient air in milking parlors and barns. —Stephanie Pappas, Scientific American, 5 Aug. 2025

The air revitalization system condenses moisture from the cabin air – primarily water vapor from sweat and exhalation – into liquid water. —Berrin Tansel, The Conversation, 30 July 2025

Elongate exhalations to recover: Post-workout, practice the 2:1 exhale-to-inhale ratio to downregulate your nervous system. —Dana Santas, CNN Money, 4 July 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for exhalation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

Kids Definition

exhalation

noun

ex·​ha·​la·​tion ˌeks-(h)ə-ˈlā-shən 

1

: something exhaled or given off

2

: the act of exhaling

Medical Definition

exhalation

noun

ex·​ha·​la·​tion ˌeks-(h)ə-ˈlā-shən 

1

: the action of forcing air out of the lungs

2

: something (as the breath) that is exhaled or given off