/ Dictionary / Index D dorsiferous: Meaning and Definition of Find definitions for: dor•sif•er•ous Pronunciation: (dôr-sif'ur-us), [key] — adj. Bot. borne on the back, as the sori on most ferns. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dorsi- dorsiflexion Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language