/ Dictionary / Index S Sudafed: Meaning and Definition of Find definitions for: Su•da•fed Pronunciation: (s'du-fed"), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of pseudoephedrine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sudafed (Thesaurus) suctorian Sudan Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language