/ Dictionary / Index S sinistrodextral: Meaning and Definition of Find definitions for: sin•is•tro•dex•tral Pronunciation: (sin"u-strō-deks'trul, si-nis"trō-), [key] — adj. moving or extending from the left to the right. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sinistrocular sinistrorse Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language