/ Dictionary / Index B black ring: Meaning and Definition of Find definitions for: black' ring' Pronunciation: [key] — Plant Pathol. Plant Pathol. a disease of grasses, characterized by black rings surrounding the stems and blighted seeds, caused by a fungus, Balansia strangulans. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Black Renaissance Black Rod Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language