from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Abnormally deep or rapid breathing.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Deep and rapid respiration that occurs normally after exercise or abnormally with fever or various disorders.


hyper- + Greek pnoiā, -pnoia, breath, breathing (from pnein, to breathe).
(American Heritage® Dictionary of the English Language, Fourth Edition)
hyper- + -pnea (Wiktionary)


  • (paroxisms of hyperpnea-apnea) and facial dysmorphisms, whose causative gene

    BioMed Central - Latest articles

  • Features that are evident in both coitus (sexual arousal and orgasm) and in undisturbed childbirth include changes in respiration (hyperpnea and tachypnea), vocalization, strained facial expression, rhythmic uterine contractions, loosening of the cervical mucous plug, frequent supine position with thighs adducted, a tendency to become uninhibited, exceptional muscular strength, an altered state of consciousness with rapid return to alert awareness after orgasm or birth, and a profound feeling of joy or ecstasy following orgasm or delivery.

    Mind Hacks


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