/ Dictionary / Index F fructosan: Meaning and Definition of Find definitions for: fruc•to•san Pronunciation: (fruk'tu-san", frook'-, frk'-), [key] — n. Biochem. any of the class of hexosans, as inulin and the like, that yield fructose upon hydrolysis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fructify fructose Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language