expiration
noun
ex·pi·ra·tion
ˌek-spə-ˈrā-shən 
1
a
: the last emission of breath : death
b(1)
: the act or process of releasing air from the lungs through the nose or mouth : exhalation
(2)
: the escape of carbon dioxide from the body protoplasm (as through the blood and lungs or by diffusion)
2
: the fact of coming to an end or the point at which something ends : termination
Examples of expiration in a Sentence
one month after the expiration of the contract
directed that upon her expiration her splendid Italian-style villa be given to the public as a museum
Recent Examples on the Web
Three or more accidents within the three years before expiration.
—
Angela Rodriguez, Sacbee.com, 18 May 2025
The threat of expiration at the end of this year led many families to gift millions of dollars to their kids to take advantage of the exemption (which also applies to the gift tax).
—Robert Frank, CNBC, 16 May 2025
Legal battles over Trump-era spending and regulatory authority will extend well beyond DOGE’s July 2026 expiration.
—Clyde Wayne Crews Jr, Forbes.com, 12 May 2025
Look for the total number of colony-forming units (CFUs) listed by the expiration or use-by date to ensure the product delivers viable bacteria throughout its shelf life.
—Lindsay Curtis, Verywell Health, 12 May 2025
See All Example Sentences for expiration
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Angela Rodriguez, Sacbee.com, 18 May 2025
The threat of expiration at the end of this year led many families to gift millions of dollars to their kids to take advantage of the exemption (which also applies to the gift tax).
—Robert Frank, CNBC, 16 May 2025
Legal battles over Trump-era spending and regulatory authority will extend well beyond DOGE’s July 2026 expiration.
—Clyde Wayne Crews Jr, Forbes.com, 12 May 2025
Look for the total number of colony-forming units (CFUs) listed by the expiration or use-by date to ensure the product delivers viable bacteria throughout its shelf life.
—Lindsay Curtis, Verywell Health, 12 May 2025
See All Example Sentences for expiration
Cite this Entry
“Expiration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expiration. Accessed 23 May. 2025.
Copy CitationKids Definition
expiration
noun
ex·pi·ra·tion
ˌek-spə-ˈrā-shən
1
a
: the expelling of air from the lungs in breathing
b
: air or vapor expelled from the lungs
2
: the fact of coming to an end
Medical Definition
expiration
noun
ex·pi·ra·tion
ˌek-spə-ˈrā-shən
1
a(1)
: the act or process of releasing air from the lungs through the nose or mouth : exhalation
(2)
: the escape of carbon dioxide from the body protoplasm (as through the blood and lungs or by diffusion)
b
archaic
: the last emission of breath : death
2
: something produced by breathing out
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