/ Dictionary / Index S southern blight: Meaning and Definition of Find definitions for: south'ern blight' Pronunciation: [key] — Plant Pathol. Plant Pathol. a disease of peanuts, tomatoes, and other plants, caused by a fungus, Sclerotium rolfsii, affecting the roots and resulting in rapid wilting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Southern Baptist Southern blot Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language