Breadcrumb Home > Dictionary > Index O oak wilt: Meaning and Definition of Find definitions for: oak' wilt" Pronunciation: [key] — Plant Pathol. Plant Pathol. a disease of oaks, characterized by wilting and discoloration of the leaves and defoliation, usually starting at and spreading from the top of the tree and the ends of the branches, caused by a fungus, Chalara quercina. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oak wax scale O and O 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: lyceum Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language