hyperventilation; overbreathing
Medical term for abnormally rapid or deep breathing, often associated with anxiety or panic. Abbreviation of 過換気症候群 (hyperventilation syndrome).
See also: 過換気症候群
I got so nervous I started hyperventilating.
If you experience symptoms of hyperventilation, try to regulate your breathing slowly.
Compound of 過 (excessive) and 呼吸 (breathing).