expiration
From Wiktionary, the free dictionary
Etymology
From Middle English expiracioun, exspiracioun (“vapor, breath”), from Latin expīrātiōnem, exspīrātiōnem, accusative singular of expīrātiō, exspīrātiō.[1][2]
Pronunciation
- IPA(key): /ˌɛk.spəˈɹeɪ.ʃən/
Audio (Southern England): (file) - (Philippines, nonstandard) IPA(key): /ˌɛk.spaɪˈɹeɪ.ʃən/
- Rhymes: -eɪʃən
Noun
expiration (countable and uncountable, plural expirations)
- The act of expiring.
- The act or process of breathing out, or forcing air from the lungs through the nose or mouth
- respiration consists of inspiration and expiration
- Emission of volatile matter; exhalation.
- (euphemistic) The last emission of breath; death.
- A cessation, extinction, ending
- That which is produced by breathing out, as a sound.
Usage notes
- In most senses, mainly US; UK equivalent is expiry.
- The pronunciation based on that of expire is common in Philippine English, but is otherwise proscribed elsewhere.
Synonyms
- (breathing out): exhalation
- (cessation): termination, end
Antonyms
- (antonym(s) of “breathing out”): inspiration, inhalation
Derived terms
Related terms
Translations
act of expiring
|
act or process of breathing out, or forcing air from the lungs through the nose or mouth; as, respiration consists of inspiration and expiration
|
emission of volatile matter; exhalation
|
last emission of breath; death
|
coming to a close; cessation; extinction; termination; end
|
References
- Douglas Harper (2001–2024) “expiration (n.)”, in Online Etymology Dictionary.
- “expirāciǒun, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.
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