orthopnoea

• orthopnea, orthopnœa

From ortho- +‎ -pnoea, from Ancient Greek ὀρθόπνοια (orthópnoia, “breathing only in an upright posture”), from ὀρθός (orthós, “straight”) + πνοή (pnoḗ, “breath”).

• IPA^(key): /ɔrˈθɒpniə/, /ɔrˈθɑpniə/, /ɔrθəpˈniːə/

orthopnoea (usually uncountable, plural orthopnoeas or orthopnoeae)

1. Shortness of breath when lying flat, causing the person to have to sleep propped up in bed or sitting in a chair.

• orthopnoeic

• dyspnoea