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. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: turgid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language