/ Dictionary / Index B barotrauma: Meaning and Definition of Find definitions for: bar•o•trau•ma Pronunciation: (bar"u-trou'mu, -trô'-), [key] — pl. -ma•ta -mas. injury of certain organs, esp. the ear, due to a change in the atmospheric pressure. Cf. aerotitis media. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. barothermohygrograph barotropic Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language