noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Alternative spelling of orthopnoea. alt-of, alternative
2. 2
   form of dyspnea in which the person can breathe comfortably only when standing or sitting erect; associated with asthma and emphysema and angina pectoris wordnet

Antonyms

All antonyms

platypnea

Etymology

From ortho- + -pnea.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.