hyperbaric

American

[hahy-per-bar-ik] / ˌhaɪ pərˈbær ɪk /

adjective

Medicine/Medical.

(of an anesthetic) having a specific gravity greater than that of cerebrospinal fluid.
pertaining to or utilizing gaseous pressure greater than normal, especially for administering oxygen in the treatment of certain diseases.

hyperbaric British

/ ˌhaɪpəˈbærɪk /

adjective

of, concerned with, or operating at pressures higher than normal

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of hyperbaric

First recorded in 1925–30; hyper- + baric ²

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He pledged to fix the FDA’s “bias” against stem cell treatments, hyperbaric chambers, and peptides, among others.

From Slate • Mar. 30, 2026

And how long before this hyperbaric, ultrasonic sewing machine spins a bobbin?

From The Wall Street Journal • Feb. 12, 2026

Some parents of children with autism, desperate for a remedy, have long reached for dubious and at times dangerous panaceas, including hyperbaric oxygen chambers and chelation therapy, used for the treatment of heavy metal poisoning.

From Salon • Dec. 15, 2025

All 14 went to the emergency room, where they spent about three hours in a hyperbaric oxygen chamber to combat the effects of smoke inhalation.

From BBC • Sep. 13, 2025

It’s a social wellness club that has cryo and hyperbaric chambers, saunas and lymphatic drainage, and basically all the L.A. wellness things that we know and we love.

From Los Angeles Times • Jun. 30, 2023

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023