Breadcrumb Home > Dictionary > Index B black rot: Meaning and Definition of Find definitions for: black' rot' Pronunciation: [key] — Plant Pathol. Plant Pathol. any of several diseases of fruits and vegetables, characterized by black discoloration and decay of affected parts, caused by fungi, as Guignardia bidwellii, or bacteria, as Xanthomonas campestris. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. black root rot black rudderfish 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: soign Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language