/ Dictionary / Index B bimensal: Meaning and Definition of Find definitions for: bi•men•sal Pronunciation: (bī-men'sul), [key] — adj. Obs. occurring once in two months; bimonthly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bimbo bimester Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language