/ Dictionary / Index B battery jar: Meaning and Definition of Find definitions for: bat'tery jar" Pronunciation: [key] a rather large cylindrical container of heavy glass with an open top, used in laboratories. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. battery eliminator Batticaloa Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language