/ Dictionary / Index S swine flu: Meaning and Definition of Find definitions for: swine' flu' Pronunciation: [key] — Pathol. Pathol. a highly contagious form of influenza caused by infection with a filterable virus first isolated from swine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. swine fever swineherd Related Content Daily Word Quiz: pudgy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language