/ Dictionary / Index B biserrate: Meaning and Definition of Find definitions for: bi•ser•rate Pronunciation: (bī-ser'āt, -it), [key] — adj. Bot. notched like a saw, with the teeth also notched; doubly serrate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: biserrate (Thesaurus) biserial bisexual 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