/ Dictionary / Index C citrus: Meaning and Definition of Find definitions for: cit•rus Pronunciation: (si'trus), [key] — pl. -rus•es. —adj. of or pertaining to such trees or shrubs, or their fruit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: citrus (Thesaurus) citrulline citrus canker 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