1. A difficulty of breathing.

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

• dyspnea,
• dysponea,
• dyspneah,
• syspnoea,
• xyspnoea,
• cyspnoea,
• fyspnoea,
• ryspnoea,
• eyspnoea,
• dtspnoea,
• dgspnoea,
• dhspnoea,
• duspnoea,
• d7spnoea,
• d6spnoea,
• dyapnoea,
• dyspnoa,
• dyspnoeah,
• dyspnoeia,
• dyspeona

• dysphonia,
• dyspnoeal,
• dyspneal,
• dyspnea,
• dispense,
• dispose,
• dyspneic,
• dyspnoeic.

The adjective form of the word "dyspnoea" is "dyspneic" or "dyspneal".

The plural of the "dyspnoea" can be the "dyspnoeas".

The singular of the "dyspnoea" can be the "dyspnoea".