/ Dictionary / Index F fuscous: Meaning and Definition of Find definitions for: fus•cous Pronunciation: (fus'kus), [key] — adj. of brownish-gray or dusky color. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fuscous (Thesaurus) fusarium wilt fuse Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language