/ Dictionary / Index F Fracastorius: Meaning and Definition of Find definitions for: Fra•cas•to•ri•us Pronunciation: (frä"ka-stôr'ē-us, -stōr'-), [key] — n. a walled plain in the fourth quadrant of the face of the moon: about 60 mi. (97 km) in diameter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fracas fractable Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language