/ Dictionary / Index H hyperbaric: Meaning and Definition of Find definitions for: hy•per•bar•ic Pronunciation: (hī"pur-bar'ik), [key] — adj. Med. (of an anesthetic) having a specific gravity greater than that of cerebrospinal fluid. Cf. hypobaric. pertaining to or utilizing gaseous pressure greater than normal, esp. for administering oxygen in the treatment of certain diseases. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hyperaphia hyperbaric chamber Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language