/ Dictionary / Index B baro-: Meaning and Definition of Find definitions for: baro- Pronunciation: [key] a combining form meaning “pressure,” used in the formation of compound words: barograph. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. barnyardism Barocchio 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