/ Dictionary / Index B bend sinister: Meaning and Definition of Find definitions for: bend' sin'ister Pronunciation: [key] — n. Heraldry. a diagonal band extending from the sinister chief of an escutcheon to the dexter base: a supposed mark of bastardy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bending moment bendy Related Content Daily Word Quiz: benevolent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language