Orthopneas

Part of speech: noun

Definitions

1. A condition characterized by shortness of breath that occurs when lying flat and is relieved by sitting or standing up, often linked to heart or lung disorders
2. Experiencing difficulty in breathing while in a horizontal position, with symptoms improving upon elevation of the upper body, commonly associated with cardiac or respiratory issues
3. Difficulty breathing that intensifies when lying down and lessens when upright, typically indicating underlying problems with the heart or lungs

Etymology: "Orthopneas" is the plural of "orthopnea," a medical noun built from the Greek "orthos," meaning "straight" or "upright," and "pnoia," meaning "breathing," from "pnein," "to breathe." The Greek compound was used in ancient medical writing for breathlessness that forces a patient to sit up, and English took it up as a clinical term.

Synonyms: difficulty breathing when lying down

Antonyms: normal breathing when lying down