orthopna Meaning, Definition & Usage

Or`thop*n"a, Or*thop"ny noun (Also<
  • Orthopna
  • Orthopny
)
Etymology
L. orthopnoea, Gr. straight, right + to breathe: cf. F. orthopnée.
Definitions
  1. (Med.) Specifically, a morbid condition in which respiration can be performed only in an erect posture; by extension, any difficulty of breathing.

Webster 1913