Definition of "breathlessness" [breath•less•ness]

• The state of being breathless or out of breath. (noun)

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• "As I grew older, I learned to delay my obedience, but each moment cost me dear-in breathlessness, nausea, dizziness, and other complaints."
• "It is, isn't it? inquired the Dentist in breathlessness, when the young stomachs of the young explorers had bitten the dust for some yards further."
• "The aim of treatment for asthma is to keep you from getting asthma symptoms, such as breathlessness or coughing fits."