1. Difficulty of breathing, such that the patient has to sit erect.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• orthopey,
• orthophony,
• orthopnw,
• irthopny,
• krthopny,
• lrthopny,
• prthopny,
• 0rthopny,
• 9rthopny,
• oethopny,
• odthopny,
• ofthopny,
• orhtopny,
• orthpony,
• orthonpy,
• Orthropny,
• Orthopnay,
• Orthofny,
• Orthopnoy,
• Orthopney