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The following statistics are based on the British National Corpus, so they are representative for the British English.

Distribution of usage frequency for the most common synonyms of the noun expiration:

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Definition of the noun expiration

What does expiration mean as a name of something?

noun - plural: expirations

  1. a coming to an end of a contract period
    • lexical domain: Time - nouns denoting time and temporal relations
    • synonyms of expiration: expiry / termination
    • more generic words: end / ending = the point in time at which something ends
  2. euphemistic expressions for death
  3. the act of expelling air from the lungs

Alternative definition of the noun expiration


  1. The act of expiring
  2. The act or process of breathing out, or forcing air from the lungs through the nose or mouth; as, respiration consists of inspiration and expiration; -- opposed to inspiration.
  3. Emission of volatile matter; exhalation.
  4. The last emission of breath; death.
  5. A coming to a close; cessation; extinction; termination; end.
  6. That which is expired; matter breathed forth; that which is produced by breathing out, as a sound.

Specialised definition of the noun expiration

Glossary of sports

the act or process of breathing out (2006. Dictionary of Sport and Exercise Science. A&C Black Publishers Ltd)


  1. "Expiration" is an independent feature film written, directed and starring Gavin Heffernan. It was the winner of the Grand Jury Prize and Best Film at the Canadian Filmmakers' Festival.
  2. "Expiration" is a film.


  1. "Expiration" is a musical album of Akeum Son.
    • released on (8 years ago)
  2. "Expiration" is a composition.


  1. Expiration: In finance, the expiration date of an option contract is the last date on which the holder of the option may exercise it according to its terms. In the case of options with "automatic exercise" the net value of the option is credited to the long and debited to the short position holders.
  2. Expiration: Expelling modified air from the lungs; breathing out.

Printed dictionaries and other books with definitions for Expiration

Click on a title to look inside that book (if available):

Google previewCompTIA Security+ SY0-301 Practice Questions Exam Cram (2011)

by Diane Barrett

Expiration is an access control practice to expire passwords on a regular basis, protecting against brute-force password-guessing attacks, and to expire accounts not used after a certain period of time. Answer A is incorrect because ...

Google previewApplied Surgical Physiology Vivas (2004)

by Mazyar Kanani, Martin Elliott

There are none; due to the elastic properties of the lung and chest wall, expiration is a passive process. Note that the volume of air left in the lung during a quiet expiration is the functional residual capacity (FRC). 5. What about the expiratory ...

Google previewThe Nervous System of the Human Body. Embracing the papers delivered to the Bengal Society on the subject of the nerves. (Appendix, containing cases and letters of consultation on nervous diseases, submitted to the author since the publication of his papers on the functions of the nerves, etc.) (1836)

by Sir Charles BELL

expiration is a state of rest. Third, The inspiration is...

Google previewPhysics of the Human Body (2007)

by Irving P. Herman

The volume after normal expiration is the functional residual capacity (FRC). After a deep inspiration the lung volume is the total lung capacity (TLC), ∼6 L. This exceeds the volume after normal inspiration by the inspiratory reserve volume ...

Google previewTextbook of Pulmonary and Critical Care Medicine Vols 1 and 2 (2011)

by SK Jindal

The air inspired over and above the tidal volume with a maximal inspiratory effort is the inspiratory reserve volume, and the volume exhaled actively after passive expiration is the expiratory reserve volume; the air left in the lungs ...

Google previewManual of Pediatric Intensive Care (2013)

by Manoj Luthra

Expiration is a passive phenomenon initiated by elastic recoil of the chest wall and upward movement of the diaphragm resulting in reversal of the pressure gradient and flow of air out of the lungs. In the graphical display of spontaneous ...

Google previewMosby's Comprehensive Review for Veterinary Technicians (2014)

by Monica M. Tighe, Marg Brown

Expiration is a passive process III. Lung volumes A. Tidal volume: the volume of air exchanged during normal breathing B. Inspiratory reserve volume: the amount of air inspired over the tidal volume C. Expiratory reserve volume: the amount of ...

Google previewThe Perfect Swing Trading Alternative for Option Traders (2010)

by Michael C. Thomsett

Swing trading is also one of the few strategies for which a quickly approaching expiration is an advantage. Because all or most of the time value is already gone from the option position, inthemoney price movement mirrors the stock and gives ...

Google previewConsultations in Feline Internal Medicine, Volume 6 - (2009)

by John R. August

Conversely, respiratory distress primarily during expiration is the hallmark of these disorders in cats. Adventitious sounds, including crackles, often are heard. Wheezes are only common in advanced disease or during acute worsening of signs.

Google previewForex for Beginners (2013)

A Comprehensive Guide to Profiting from the Global Currency Markets by Adam Kritzer

On the other hand, the risk that monetary losses may be experienced prior to expiration is a risk that is intrinsic to forex futures contracts and must be taken into account. Futures are especially well suited to directional bets on exchange rates ...

Google previewClinical Examination (2013)

A Systematic Guide to Physical Diagnosis by Nicholas J Talley, Simon O’Connor

Expiration is a passive process resulting from elastic recoil of the muscles. Abnormalities of lung function or structure may change the normal anatomy and physiology of respiration, for example as a result of over-inflation of the lungs ( chronic ...

Google previewThe Molecular Biology and Pathology of Elastic Tissues (2008)

by CIBA Foundation Symposium

Similarly, under normal circumstances inspiration is an active, energy-requiring process, whereas expiration is a passive one because of the elastic recoil of the respiratory tree. Several unrelated proteins have evolved elasticity, including ...

Google previewNursing Practice (2014)

Knowledge and Care by Ian Peate, Karen Wild, Muralitharan Nair

Expiration is a more CLINICAL APPLICATION As the thorax expands intrapulmonary pressure falls below atmospheric pressure Differences in partial pressure govern the movement of oxygen and carbon dioxide between the atmosphere, the ...

Google previewThe SAGE Encyclopedia of Food Issues (2015)

by Ken Albala

LeenaTrivediGrenierLeena TrivediGrenierTrivediGrenier, Leena Expiration Dates Expiration dates 421 423...

Google previewPocket Medical Dictionary (1999)

by B. Jain Publishers Staff

By passage of air through a small cavity with flaccid walls that collapse with expiration. By passage of air through softening material in smaller bronchi. When bronchial tubes are surrounded by consolidated tissue. Large, musical, and tinkling.

Google previewThe London encyclopaedia, or, Universal dictionary of science, art, literature, and practical mechanics, by the orig. ed. of the Encyclopaedia metropolitana [T. Curtis].

by Thomas Curtis (of Grove house sch, Islington)

spiration ; but, ceasing to be exerted, the elastic power gains efficiency and produces expiration. To the elastic, others add the muscular power of the bronchia, and altogether suppose the respiratory process to be more independent upon ...

Google previewEncyclopaedia Medica (1902)

by Chalmers Watson

Expiration under ordinary circumstances is a purely passive movement. The action of the inspiratory muscles having ceased, the distended lung partially collapses, and in doing so draws inwards the thoracic wall, which moreover tends to ...

Google previewEncyclopedia of Alternative Investments (2008)

by Greg N. Gregoriou

Expiration dates for exchangetraded contracts are not uniform, but are set by each individual exchange. The expiration Extrinsic Value • 173 date for stock options in the United States is usually the third Saturday after the third Friday of the ...

Online dictionaries and encyclopedias with entries for Expiration

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Photos about Expiration

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Natural clock: expiration time.

Photo credit: Daniel Avelino

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Video language resources about Expiration

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Quotes about Expiration

Life is aspiration, respiration and expiration. (Salvador Dali)
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Scrabble value of E1X8P3I1R1A1T1I1O1N1

The value of this 10-letter word is 19 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

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