/ Dictionary / Index F fusarium: Meaning and Definition of Find definitions for: fu•sar•i•um Pronunciation: (fy-zâr'ē-um), [key] — pl. -sar•i•a any fungus of the genus Fusarium, occurring primarily in temperate regions and causing a variety of diseases in plants and animals, producing in humans a loss of fingernails and sometimes blindness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fusain fusarium wilt Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language