/ Dictionary / Index L late blight: Meaning and Definition of Find definitions for: late' blight' Pronunciation: [key] — Plant Pathol. Plant Pathol. a disease of plants, esp. potatoes, celery, etc., characterized by spotting, blighting, and withering or decay of the entire plant, caused by any of several fungi, as Phytophthora infestans or Septoria apii. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. late late bloomer 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