Definition of orthopnoea in English:

orthopnoea

(also orthopnea)

noun

Medicine
  • Dyspnoea that is most severe in recumbency and that is alleviated by assuming an upright position. In early use also: †an instance of this (obsolete).

Origin

Mid 16th century; earliest use found in Thomas Phaer (?1510–1560), translator and physician. From classical Latin orthopnoea (Pliny) or its etymon ancient Greek ὀρθόπνοια from ὀρθόπνοος connected with orthopnoea + -ία -ia.

Pronunciation

orthopnoea

/ɔːˈθɒpnɪə/