hyperventilation

hyper- +‎ ventilation

• (Canada) IPA^(key): /ˌhaɪpɚˌvɛntəˈleɪʃən/
• (UK) IPA^(key): /haɪ.pə(ɹ)ˌvɛntəˈleɪ.ʃən/

• CA synth

  (file)

  Rhymes: -eɪʃən

hyperventilation (countable and uncountable, plural hyperventilations)

1. (medicine, pulmonology) The state of breathing faster or deeper than necessary.
   • 2012, H. Penzholz, M. Brock, J. Hamer, Brain Hypoxia: Pain, →ISBN, page 42:

     As artificial hyperventilation is advocated in the treatment of raised intracranial pressure, it must be questioned where to set the limit beyond which hypocapnically induced cerebral tissue hypoxia may occur.

• (antonym(s) of “breathing faster”): hypoventilation