As nouns the difference between orthopnea and apnea
is that orthopnea is an alternative spelling of lang=en while apnea is the cessation of breathing.
apnea
English
Alternative forms
* (UK) apnoea
* (Obsolete)
Noun
(
en noun)
(pathology) The cessation of breathing.
Synonyms
* asphyxia
Derived terms
* apneic
* sleep apnea
References
*
Anagrams
*
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