/ Dictionary / Index B borate: Meaning and Definition of Find definitions for: bo•rate Pronunciation: (n.bôr'āt, -it, bōr'-v.bôr'āt, bōr'-), [key] — n., v., -rat•ed, -rat•ing. —n. a salt or ester of boric acid. (loosely) a salt or ester of any acid containing boron. —v.t. to treat with borate, boric acid, or borax. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: borate (Thesaurus) borasca borax Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language