Breadcrumb Home > Dictionary > Index T thread blight: Meaning and Definition of Find definitions for: thread' blight" Pronunciation: [key] — Plant Pathol. Plant Pathol. a fungal disease of woody plants, characterized by thick, threadlike strands of mycelium on the undersides of the leaves and branches. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. threadbare threaded TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: aficionado Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language