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
As anticipated, the Emilia-Romagna Grand Prix at Imola will not appear on the calendar after the expiration of its contract, being effectively replaced by the Madrid race.
—
Luke Smith, New York Times, 10 June 2025
In New York, several warnings are active, which do not currently have an expiration time or date.
—Aliss Higham, MSNBC Newsweek, 8 June 2025
Though still at least 10 years’ out from possible expiration, IMEA — citing the need for long-term planning — gave Naperville an April 30 deadline to decide whether or not to extend its contract to 2055.
—Tess Kenny, Chicago Tribune, 6 June 2025
The travel ban was announced shortly after the expiration of Chevron’s oil license in Venezuela—a move widely interpreted as a political blow to Maduro’s regime.
—Verónica Egui Brito, Miami Herald, 5 June 2025
See All Example Sentences for expiration
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Luke Smith, New York Times, 10 June 2025
In New York, several warnings are active, which do not currently have an expiration time or date.
—Aliss Higham, MSNBC Newsweek, 8 June 2025
Though still at least 10 years’ out from possible expiration, IMEA — citing the need for long-term planning — gave Naperville an April 30 deadline to decide whether or not to extend its contract to 2055.
—Tess Kenny, Chicago Tribune, 6 June 2025
The travel ban was announced shortly after the expiration of Chevron’s oil license in Venezuela—a move widely interpreted as a political blow to Maduro’s regime.
—Verónica Egui Brito, Miami Herald, 5 June 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 19 Jun. 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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