expiration

noun ex·pi·ra·tion \ ˌek-spə-ˈrā-shən \
Updated on: 7 Dec 2017

Definition of expiration

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

  1. one month after the expiration of the contract

  2. directed that upon her expiration her splendid Italian-style villa be given to the public as a museum

Recent Examples of expiration from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'expiration.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of expiration

1526


EXPIRATION Defined for English Language Learners

expiration

noun

Definition of expiration for English Language Learners

  • : the fact of coming to an end or no longer being valid after a period of time : the fact of expiring

  • medical : the act of breathing out


EXPIRATION Defined for Kids

expiration

noun ex·pi·ra·tion \ ˌek-spə-ˈrā-shən \

Definition of expiration for Students

1 : the end of something that lasts for a certain period of time
  • expiration of a coupon
2 : the act of breathing out

Medical Dictionary

expiration

noun ex·pi·ra·tion \ ˌek-spə-ˈrā-shən \

medical Definition of expiration

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


Seen and Heard

What made you want to look up expiration? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to provide what is needed to exist

Get Word of the Day daily email!

Test Your Vocabulary

Intact Latin Quiz

  • roman-tablet
  • What did focus mean in Latin?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!