| NOUN | state | orthopnea | form of dyspnea in which the person can breathe comfortably only when standing or sitting erect |
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| Meaning | form of dyspnea in which the person can breathe comfortably only when standing or sitting erect; associated with asthma and emphysema and angina pectoris. | |
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| Broader | dyspnea, dyspnoea | Difficult or labored respiration |