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Abnormally slow, shallow breathing.
[hypo- + Greek pnoiā, -pnoia, breath, breathing (from pnein, to breathe; see pneu- in Indo-European roots).]
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|Noun||1.||hypopnea - slow or shallow breathing|
breathing, external respiration, respiration, ventilation - the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
hyperpnea - energetic (deep and rapid) respiration that occurs normally after exercise or abnormally with fever or various disorders