Hyperbaric /(?)/

Hy·per·bar·ic

Hyperbaric

a.
  1. Of, pertaining to, or using a pressure that is greater than normal atmospheric pressure; as, a hyperbaric chamber, where divers may decompress slowly to avoid the bends.
  2. Of, pertaining to, or using an oxygen pressure that is greater than that at normal atmospheric pressure; as, a hyperbaric tent to provide additional oxygen to patients with breathing difficulty.