/ Dictionary / Index N northern leaf blight: Meaning and Definition of Find definitions for: north'ern leaf' blight" Pronunciation: [key] — Plant Pathol. Plant Pathol. a disease of corn caused by the fungus Exsherohilum turcicum, characterized by elongate tan-gray elliptical spots with subsequent blighting and necrosis of leaves. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. northern kingfish northern lights Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language