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

Synonyms

• death
• demise
• expiry
• 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

Following six straight trading days in the red since the expiration of the lockup restrictions, including hitting a new 52-week low on Monday, Trump Media shares snapped a losing streak Tuesday, ending the trading day up more than 5% at $12.79 per share. —Ece Yildirim, CNBC, 27 Sep. 2024

If United Atlantic Ventures sold its shares on September 20, the first day after the expiration of the lock-up period, the sale proceeds would have amounted to $102 million. —Aimee Picchi, CBS News, 26 Sep. 2024

Since the expiration of the public health emergency in May 2023, many insurers stopped covering the cost of COVID tests. —Kelly Tyko, Axios, 26 Sep. 2024

Moss represented Messersmith and McNally — who also had pitched without a contract in 1975 — in asserting that a player should become a free agent one year after the expiration of his contract. —Steve Henson, Los Angeles Times, 25 Sep. 2024

Word History

First Known Use

1526, in the meaning defined at sense 1a

Phrases Containing expiration

• expiration date

Kids 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